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The excitement of the New Year approaching may have us distracted from caring for our furry friends. As we get ready for the countdown New Year's Eve, here are some pet safety tips to keep in mind from our blog, 4 ways to enjoy New Year's Eve with your pet. How to enjoy New Year's Eve more »
Yearly Archives: 2016
Pet-friendly waterless cleaning products for winter
Even in the winter, pets can get into some serious messes. If washing them outside isn't an option – you need an alternative! With the weather changing, we have some great waterless bathing tips for your pets. Check out these tips from our blog; Waterless bathing for pets. Waterless bathing products Spray– Many companies sell waterless more »
Safe Holiday Snacking for your Pet
Material adapted from Pet Talk* Snacking: foods to avoid having around your pet Many people spread holiday cheer through tasty treats, warm beverages, and feasts, but this type of celebration may not be fit for Fido. In fact, many "people foods" can cause health problems in cats and dogs. Dr. Christine Rutter, clinical assistant professor more »
Grieving the loss of a pet during the holidays
For many people, the holiday season is a time filled with family, friends, and good memories. For others, this time of year is difficult because they're grieving the loss of a pet they loved. In this Animals' Voice Pawdcast, we speak with Russell Friedman, executive director of the Grief Recovery Institute and co-author of the Grief Recovery more »
Boxing day activities for you & your pets
Having a day off with your family can be a lot of fun! To help you involve your pets in the Boxing Day fun, we have some activity ideas for you. Fun Boxing Day things to do with your pets Go for a hike/walk with your dog: If it's not too cold outside, going for more »
Tips to make your Holidays pet-safe
The holidays are finally upon us! As you prepare for all the festivities, we want to make sure your pets are not forgotten. Here are some tips to make sure your pets are safe & happy! Food We know you're proud of the holiday meal you created – but that doesn't mean you should share more »
Last minute stocking stuffers for animal-loving friends!
Are you still looking for the perfect holiday present? It's not too late to give an amazing gift you'll feel proud to give. Find last minute stocking stuffers ideas here! When you give through Paws & Give™ you are helping the Ontario SPCA care for abandoned and abused animals who can't speak for themselves. Online virtual catalog more »
Enjoying the holidays with your pet
There's nothing better than putting your feet up with a warm drink after a long day of holiday shopping, parties and bustle; but while the holidays are chalked-full of activity, your pet can easily be caught up in the holiday shuffle. Here are some quick ways to enjoy the holidays with your pet! Make walking more »
Simu Liu's iAdopt story: Two lives changed for the better
Simu Liu is a Canadian actor, director, stuntman, writer, and dog lover. Liu joined us to share his story of adopting Barkley and how it has changed his life! Learn more and see this adorable story here: Simu Liu's iAdopt story iAdopt for the Holidays The holiday season is a great time to bring a new pet more »
Help horses in need this winter
With the cold weather upon us, our horses and ponies available for adoption require a little extra care to stay warm and healthy. So we're asking the public for donations of gently used blankets for our horse friends! What the horses need The Ontario SPCA is seeking all sizes of winter turnout blankets, blanket liners, more »


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Oma ExtremFavorites [+]
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Running Time: 85 minutes
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Description: Watch as this lady is tied up and punished to the point of screaming orgasms! They LOVE the pain!!
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India are 9/2 with Coral to win the Twenty20 World Cup after they demolished defending champions England in Colombo.
South Africa are also 9/2 to lift the trophy while England have drifted to 6/1 following the heavy defeat to the Indians.
Coral make hosts Sri Lanka 5/1 ahead of their clash with New Zealand in the Super Eights stage, Australia and Pakistan are 11/2, with the West Indies next at 13/2.
Elsewhere, Luke Wright is out to 8/1 from 6s to be the top batsman and Harbhajan Singh has been cut to 16-1 (from 50-1) to be the tournaments leading wicket taker after he took 4-12 against Stuart Broad's men.
Tim Reynolds of Coral told Betrescue, "The 90-run defeat to India was England's biggest ever loss in the shortest format of the game, but with Stuarts Broad's side having already qualified for the Super Eights stage, they can put that match firmly behind them and look towards taking on the winner of the Ireland v West Indies match."
**World Twenty20 Outright Betting
9-2 India, 9-2 South Africa, 5 Sri Lanka, 11-2 Australia, 11-2 Pakistan, 6 England, 13-2 West Indies, 12 New Zealand, 250 Bangladesh, 5000 Ireland
**Top Tournament Bowler
10-3 Saeed Ajmal, 5 Ajantha Mendis, 9 Dale Steyn, 9 Mitchell Starc, 11 Lasith Malinga 12 Jacques Kallis, 14 Morne Morkel, 14 Tim Southee, 14 Sunil Narine, 16 Harbhajan Singh, 16/1 Ravichandran Ashwin, 18 Graeme Swann, 20 Lakshmipathy Balaji, 20 Shahid Afridi, 20 Stuart Broad, 25 Allbie Morkel, 25 Jade Dernbach, 25 Kyle Mills, 25 Umar Gul, 28 Brad Hogg, 28 Steven Finn, 33 Irfan Pathan, 33 Johan Botha, 33 Zaheer Khan, 40 Abdul Razzaq, 40 Pat Cummins, 40 Rangana Herath 40 Ravi Rampaul, 40 Samit Patel, 40 Sohail Tanvir, 40 Thisara Perera, 50 Ashok Dinda, 50 Ben Hilfenhaus, 50 Dwayne Bravo, 50 Fidel Edwards, 50 Lonwabo Tsotsobe, 50 Nathan McCullum, 50 Nuwan Kulasekara, 50 Piyush Chawla 50 Tim Bresnan, 66 Daniel Vettori, 66 Danny Briggs, 66 Darren Sammy
Compare all T20 World Cup odds and bet at the best price.


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Triple Pundit: How To Transform Cities With Community Supported Art
Modeled after a CSA, Springboard for the Arts connects artists with local residents.
Artists can transform cities. They turn wasted buildings into studios and lofts. Galleries and cafes follow. The neighborhood gentrifies. Rents go up. Next come condos…
But do cities return the favor? Laura Zabel of Springboard for the Arts in Minneapolis thinks they should.
She developed an innovative program called Community Supported Art. It's patterned after community support agriculture (CSA), programs in which farmers sells shares in the harvest (rather than individual veggies) in exchange for regular deliveries of produce. At Springboard, "our big goal is creating a new system of supporting art. It's about giving communities the ability to tap into the resources that artists have."
Regularly Scheduled Art
The idea for community supported artists came to her after seeing her mother's regular veg delivery. Not aimed at the usual collector class, Community Supported Art program reaches people who are concerned with supporting local economic community – such as coop members – who might be intimidated by artists. The Community Supported Art program works like this: nine artists receive a commission to produce 50 shares. People pay $300 for a share and receive one piece of work from each artist, which could be stained glass, ceramic, photographs or letterpress editions of a poem. Said Zabel, "It's designed for people who aren't part of art community, who are intimidated by going to a gallery. It creates an on ramp to finding out who is making work and it's about making relationships between artists and communities, having the experience of meeting artists".
The Community Supported Art program in Minneapolis is so popular, it regularly sells out. And it does foster relationships: Zabel tells how one stained glass artist received a commission to do four more pieces from a shareholder.
image credit: Scott Streble
(Continue reading original article here.)
Originally published on Triple Pundit, republished with kind permission.


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Whenever Mr. Berlusconi resurfaces in the Italian media, my international friends ask me the same question again and again: Why? As an Italian living in Berlin, I have plenty of opportunities for discussion – partially because Berlin is (obviously) full of non-Italians, and partially because the political maestro has an unnerving tendency to swim below the surface for months, only to resurface suddenly and devastatingly like a great white shark in the movie "Jaws".
Read Full Article »


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Sonic/Casper is a parody and will be made.
Version 1 (made by BrittalCroftFan, do not edit, add, or delete!)
- Sonic as Casper
- Amy Rose as Kat "Kathleen" Harvey
- Rouge the Bat as Carrigan Crittenden
- Shadow the Hedgehog as Paul "Dibs" Plutzker
- Knuckles as Dr. James Harvey
- Tikal as Amelia Harvey
- Scratch as Stretch
- Grounder as Fatso
- Coconuts as Stinkie
- Espio as Crypt Keeper
- Charmy as Vic
- Cosmo as Amber
- Tails as Nicky
- Rotor as Father
- Chris as Spooky
- Helen as Polli
Version 2
- Sonic as Casper
- Amy as Kat
- Rouge as Carrigan
- Shadow as Paul
- Knuckles as James
- Julie Su as Amelia
- Scratch as Stretch
- Grounder as Stinkie
- Coconuts as Fatso


text: Mutual fund investors seeking a high yield with low volatility should consider the brand new Power Dividend Index Fund, says the fund's portfolio manager Jeffrey Thompson. The fund uses an intermediate-term tactical overlay which positions it defensively or offensively depending on market developments and conditions. When the Fund is positioned defensively, its portfolio is invested in money market funds and other cash equivalents. This protects capital during equity market downturns, according to Thompson.


text: I know it's one of those things you either love or hate, but I'm so used to clicking on the header logo in a forum to be taken back to the forum home page, that I get constantly annoyed on xenforo.com when I end up back at the (useless to existing customers) website home page. I understand the arguments for and against this model (eg: breaks the net "standard" of logo linking to home page), but I thought I'd at least put it out there. A compromise suggestion: on non-forum pages, have the logo link to the main website home page, but on forum pages, have it link to the forum home page. I realise that introduces inconsistency in navigation, but it's nice to have a quick "reset" function to take you back to the forum home page without needing to think about the need to click "Forums" vs "Home".


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Books of Doom pg1 by BrianReberWatch
©2005-2017 BrianReber
Here is the first page to "Books of Doom" coming out through Marvel in November 05.
Pencils - Pablo Raimondi
Inks - Mark Farmer
Colors - Me (Brian Reber)
Pencils - Pablo Raimondi
Inks - Mark Farmer
Colors - Me (Brian Reber)
<3 Doom. I need to get my hands on those books somehow.
Absolutely amazing line and colour work<3 Great job!
Absolutely amazing line and colour work<3 Great job!
Really nice job on the metal, look really authentic.
Epic. Nice choice on the subdued color palette. So many people paint him in that saturated green. He's such a depressing figure, and the colors should reflect that... as the do in this work.
Ahh...my fav marvel baddie. Because he's the smartest. Good Job
Wow,that is phenomenal! There's so much detail,and such a menacing pose too! Well done!
Very nicely done.
Nice tease Brian, thanks for posting.
Wow... I'm rendered speechless. ^.^;
Awesome texture on the mask.. and I love the hint of emotion in the eyes. I don't see such subtle work often.
wow!!! nice work
nice coloring
great colors ..impressive
Once again a trio of artists that make an absolutely amazing team. Well done good sirs.
That is awesome work.
Absolutely awsome. Great pose, great take on Doom, awesome line-art, spectacular colours - love it.
now THIS is the Victor von Doom I know and love, not like the travesty that was Julian McMahon *shudders*. Kudos to you and the other two fine people that made it possible for me to gaze upon this masterpiece of villainy.
too cool
wow, this is just great work
oh heh, yeah that looks - awe-awesome...
oh my god...awesome
oh my god...awesome
Doom Rulez! Awesome
this is off the hook, Brian!
i like how you put the exact amount of detail without saturated of textures and giving a great look.
Jesus Christ. I love you.
Jesus Christ. I love you.
beautiful colors as always, especially on the armor plating.
wonderful detail..lets see if i can find a comic book store


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Published: February 20, 2014 - 01:40 PM | Updated: February 21, 2014 - 06:42 AM
Myers Industries Inc. is increasing its dividend and buying back more shares as the Akron manufacturer anticipates better profits ahead.
The company, a rubber and plastic products maker and specialty tool distributor, on Thursday reported a softer fourth quarter but higher 2013 revenue results compared to a year ago.
Shares of Myers rose 68 cents, or 3.5 percent, to $20.08, even though quarterly earnings and revenue missed analyst estimates.
Myers announced it is increasing its quarterly dividend by 44 percent, from 9 cents to 13 cents, and has authorized buying back $40 million in stock this year. The dividend increase is payable April 1 to shareholders of record as of March 10. Myers increased its dividend last year by 12.5 percent.
The polymer company reported net income of $3.3 million, or 10 cents per share, on revenue of $211.3 million. That compares to net income of $8.5 million, or 25 cents per share, on revenue of $214 million a year ago.
When adjusted for one-time factors, Myers Industries said it had fourth-quarter net income of nearly $8.8 million, down 1.7 percent from $8.9 million a year ago. Adjusted earnings were 26 cents per share, the same as a year ago, the company said.
For the full fiscal year, Myers Industries reported earning $26 million, or 76 cents per share, on revenue of $825.2 million. A year ago, Myers had net income of nearly $30 million, or 88 cents per share, on revenue of $791.2 million.
Adjusted full-year net income was $34.1 million, or $1 per share, compared to $32.1 million, or 94 cents per share, a year ago, the company said.
"We are pleased with the consistent financial improvement of the company in 2013," Myers President and Chief Executive Officer John Orr said in a statement. "Although we saw less strength in the fourth-quarter results due to softer sales volumes and transportation difficulties, our full-year results showed a 6.4 percent improvement in diluted earnings per share."
The company's actions to increase the dividend and buy back shares reflect executives' positive outlook for the business and anticipated strong cash flow, Orr said.
Share repurchases reduce the supply of stock available to the public and increase earnings per share.
Orr said Myers is implementing the second phase of its restructuring of its Lawn and Garden segment.
While current first-quarter finances "will be impacted by extreme weather conditions" the company anticipates profits for the year will show improvement, he said.
"We continue to look for the right bolt-on acquisitions," Orr said. "It's all part of our balanced approach to capital allocation and what I can say is, stay tuned, I guess."
Jim Mackinnon can be reached at 330-996-3544 or email@example.com


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An alias is an alternate name for an entity. They typically contain common mispellings or variations of the name and are also used to improve search results. View the alias documentation for more details.
|Sort name
|Begin Date
|End Date
|Gato Berbieri
Artist credits
This is a list of all the different ways Gato Barbieri is credited in the database. View the artist credit documentation for more details.
|Abdullah Ibrahim, John Tchicai, Gato Barbieri, Barre Phillips & Makaya Ntshoko
|Gato Barbieri
|Gato Barbieri & Dollar Brand
|Gato Barbieri & Dollar Brand
|Gato Barbieri & Don Cherry
|Gato Barbieri, Dale Warren & Eddie Martinez


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We did really good. We made it to the MIAA Championship game but we lost to Gilman.
How did you do personally?
I did great man. I had the most tackles all season with 27. I had five tackles for loss. I also had 106 yards between rushing and receiving and had a touchdown.
What schools are you hearing from?
Delaward, Rutgers, UCONN, Bucknell and Monmouth.
Do you have any offers?
Yes, Bucknell and Monmouth.
Are there any schools you want to hear from?
Maryland. They are my dream school!
What is it about the Terps that makes them your dream school?
I have always been a huge fan. A lot of people I play agaisnt are going there (Kenny Goins, Roman Braglio, etc). I just love playing for a team I always rooted for and its close to home.
What are you looking for in a school?
Comfortable environment and a proven team.
Have you been to campus before?
Oh yea, plenty of times.
Have you talked to the coaching staff?
Yes, I spoke with Coach Edsall, but only briefly through email back and forth.
What type of player are you?
I am very physical. I am smart. I will do anything for my team. I am also very clutch in key situations, when my team needs a big play or a stop.
Do you have any official visits planned?
So far I just have one planned to Monmouth this weekend. I am sure they will start piling on.
Is there a college or pro player that you pattern your game after?
Eric Weddle of San Diego or John Lynch.
What do you plan on working on in the offseason?
You can always improve everywhere. But maybe working on having more fluid hip movement.


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Luiten shoots 67 for 3-shot lead at Lyoness Open
ATZENBRUGG, Austria — Joost Luiten of the Netherlands shot a 5-under 67 Saturday, extending his lead to three strokes heading into the final round of the Lyoness Open.
Holding a one-shot overnight lead, Luiten bogeyed two of his first five holes. He recovered with seven birdies to finish at 16-under 200, three strokes ahead of Spanish pair Jorge Campillo (66) and Eduardo de la Riva (69).
Luiten is in contention for his second European Tour title.
|The article you requested is no longer available on BostonHerald.com.


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New York-based Mishka reveals its upcoming spring/summer collection with this lookbook. Warmly embracing the season, the collection features vibrantly hued button-ups and hats, including tropical patterns on a series of five-panel caps and shirts. Balancing these out are a selection of basketball and baseball jerseys, tanks and shorts with more subdued neutrals, but appropriate to the weather nonetheless.
One standout pattern to look out for is the subtle blue grilled lobster against a faded pink backdrop available both in tanks and button-downs. Be sure to visit Mishka's website for more information, as well as our online store for a selection of the label's goods.


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The BankMobile Vibe
The BankMobile Vibe is a unique benefit to you, as an active member of BankMobile a Division of Customers Bank community. You are expected to have your Higher University OneCard with you at all times on-campus. Benefits of using the BankMobile Vibe and OneAccount include:
FlexAccount funds can be used for vending purchases, on-campus laundry, laser printing and photocopying services, as well as at the University Bookstore and all campus dining locations. Funds can be deposited to the FlexAccount online, in person or via your BankMobile Vibe Campus AutoLoad feature.
The BankMobile Vibe OneAccount
A Customized Bank Account Provided to You through BMD
Direct Deposit of University Refunds
There are multiple options provided to you for choosing how to receive your refunds. If you choose to receive your funds electronically by direct deposit into your Higher One account, you'll receive your money in the fastest way possible!
Pay Anywhere with Debit MasterCard® Spending Power
Your new BankMobile Vibe and OneAccount give you the power to pay wherever MasterCard® is accepted: at millions of locations worldwide.
Pay On-Campus
With the Campus AutoLoad feature, you have the option to request that funds from your BankMobile Vibe OneAccount be automatically transferred to your Flex to cover on-campus purchases.
Be Rewarded When You Shop
You may be eligible to earn OneRewards when you use your BankMobile Vibe at participating merchants.
24-Hour Online Banking
The BankMobile Vibe OneAccount gives you the tools to do all your banking online—anytime.
Access Your Money Faster and More Easily
With the Direct Deposit and E-Check features, payments are received almost instantaneously.
Get Cash On-Campus and Off-Campus
With Debit MasterCard® spending power, you won't need cash often—but if you do, getting it is quick and easy through an ATM.


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A Shirtless Johnny Depp Gives Armie Hammer A Hug On 'Lone Ranger' Set [PHOTOS]
Following filming, the co-stars gave each other a hug to celebrate the last scene on set.
The rumored $250 million film has had one of the longest shoots in recent history. Filming began Feb. 28 in New Mexico and is expected to wrap at the end of September, for a total of between 140 and 150 shooting days.
The film has had some major setbacks. Wind and dust storms damaged the sets, and Depp reportedly was injured in a fall from a horse. That, along with the on-set death Sept. 21 of a welder who was preparing an underwater action sequence for the film.
Even though the coroner's initial report say that Michael Andrew Bridger suffered from a heart attack, an investigation will be held by the workplace safety enforcement agency Cal/Osha to confirm if there was any negligence. Bridger was wearing a scuba gear while cleaning a pool to be used on the film set of "The Lone Ranger" which is in northeast Los Angeles County.
An autopsy would further determine the official cause of death of the crew member and the official will interview the entire cast and crew about Bridger's death. His funeral is currently being planned by his family and friends and they do not blame the production company for his death.
Walt Disney Studios is producing the film that stars actor Johnny Depp as the Lone Ranger's sidekick Tonto. The studio expressed their condolences and said that their thoughts are with Bridger's family, friends and co-workers.


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Citation Edit
Playboy Enters., Inc. v. Universal Tel-A-Talk, Inc., 1998 WL 767440, 1998 US Dist. LEXIS 17282 (E.D. Pa. Nov. 3, 1998) (full-text).
Factual Background Edit
Plaintiff Playboy Enterprises ("PEI") operated an electronic version of its popular adult magazine on the Internet. Defendant operated an adult website at "www.adult-sex.com/playboy" where it offered a subscription service called "Playboy's Private Collection." Defendant's site prominently featured PEI's federally registered marks PLAYBOY and BUNNY, and contained a hyperlink to PEI's website at "playboy.com." Defendant also invited Internet users to send e-mail messages to "firstname.lastname@example.com."
Trial Court Proceedings Edit
PEI sued, alleging trademark infringement, dilution, and counterfeiting. After the court entered a temporary restraining order and then a consent decree preliminarily enjoining defendant's use of PEI's marks, the case was tried to the court.
The court first found a likelihood of confusion resulting from defendant's use of PEI's trademarks. It considered the "playboy.com" hyperlink to plaintiff's website to be evidence of defendant's intent to capitalize on PEI's reputation. The court also found that defendant's use of plaintiff's marks constituted dilution. Finally, the court held that by using PEI's marks in connection with the sale of adult images on its website, defendant's actions constituted counterfeiting under the Lanham Act.
The court awarded PEI statutory damages of $10,000, as well as reasonable attorney's fees. Defendant was permanently enjoined from using PEI's trademarks "or any colorable facsimile thereof," and from providing a link to PEI's website, "playboy.com." It was also enjoined from using the PLAYBOY mark as a domain name, directory name, or other computer address, and from using the mark on its web page or in any other manner in connection with its services.
Source Edit
- This page uses content from Finnegan's Internet Trademark Case Summaries. This entry is available under the Creative Commons Attribution-Share Alike License 3.0 (Unported) (CC-BY-SA).


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|Publication number
|Publication type
|Application number
|Publication date
|Dec 1, 2009
|Filing date
|Oct 24, 2007
|Priority date
|Oct 24, 2007
|Fee status
|Also published as
|Publication number
|Conrad M. Rose
|Original Assignee
|Northrop Grumman Systems Corporation
|Export Citation
|BiBTeX, EndNote, RefMan
|Patent Citations (40), Non-Patent Citations (1), Referenced by (12), Classifications (22), Legal Events (3)
|External Links: USPTO, USPTO Assignment, Espacenet
1. Field of Invention
This disclosure relates to the radar and Electronic Warfare Support Measures (ESM) systems located on a single aircraft. In one embodiment, the disclosure utilizes infrequently scheduled radar inputs to an otherwise passive ESM target tracking filter to enhance the performance of the passive tracker while minimizing the chance the radar is detected by ESM or Radar Warning Receivers (RWR) on other platforms.
2. Description of Related Art
These filters are typically used to track targets at different ranges. The reflected signal power the radar works with is proportional to 1/r4 while the direct path power the ESM receiver detects is proportional to 1/r2. So often in conventional systems the trackers are employed in a complementary manner, with the ESM tracker used mostly for distant emitters and the radar tracker for close-in targets. But there are also tactically important situations where the ESM tracker is used close-in to avoid threat intercept receivers, i.e., 111 located on other aircraft, detecting the radar, and hence the presence of ownship. Thus, an embodiment of the disclosure is concerned with this overlap region, where the radar can detect the emitter, but it is advantageous to use passive, bearings-only tracking.
In addition to detection avoidance, there are other benefits to bearings-only tracking. The ESM tracker has a field of view (FOV) advantage over the radar. To detect targets and subsequently measure azimuth and obtain range information the radar electronically or mechanically steers its antenna 105. This maximizes pattern gain in different angular directions to compensate for the 1/r4 loss, but can only be done within a restricted FOV 106. By contrast, the ESM system measures signal angle of arrival (AOA) using passive interferometers, for example 107 1. Although an interferometer has at most a �90� FOV, nearly 360� coverage is achieved by switching 121 between several antenna pairs such as 108, 109 to create additional long baseline interferometers or LBI, e.g., 107 2, around the aircraft.
But while the bearings-only ESM target estimator 101 can track emitters at any relative bearing and at ranges several times further out than detectable by the radar, there its advantage over the radar tracker 100 ends. It ends because recursively estimating target position and velocity from the single azimuth input 104 is much less straightforward than estimating kinematics from the vector inputs 102 and 103.
A problem in bearings-only estimation is a sequence of bearing measurements cannot be uniquely associated with the correct emitter position and velocity without the observer undergoing special accelerations. That is, as described by Fogel and Gavish in "Nth-Order Dynamics Target Observability from Angle Measurements", IEEE Transactions on Aerospace and Electronic Systems, AES-24, 3 (May 1988), conventional bearings-only passive emitter tracking requires the observer to maneuver during the sequence of receiver dwells used to collect the angle measurements. The special maneuver required depends on the target motion, and in particular not just its velocity, but various higher order derivatives of its velocity. Of course, since the target's motion is not known beforehand, neither is the observability maneuver required.
Because the observability maneuver is not known, it is common for the ESM tracker design to incorporate the unwarranted a priori assumption the target is flying a constant velocity track requiring, according to Fogel and Gavish, the observer to fly two constant velocity legs on different headings. Thus prior methods of bearings-only target tracking, e.g., as described by U.S. Pat. No. 5,877,998 Aidala, et al. in "Recursive Method for Target Motion Analysis," emphasize such observer motion. But then even if the emitter happens to indeed be flying a constant velocity track, convergence to a range estimate occurs only after the observer completes the first leg and turns. That is, the target is located only after the second leg has begun. Hence, Aidala notes it is an object of its invention "to provide an improved method . . . for providing range estimates as soon as two measurement legs of data become available."
The emitting aircraft may be flying any of a host of missions. These missions each involve special flight regimes such as cruise, loiter, supersonic dash and missile launch. Some regimes incorporate long constant velocity legs but all also require heading changes and other accelerations. So the chance that a significant number of detected emitters will be at constant velocity throughout the initialization phase is small. This leads to the frequent failure of bearings-only estimators to initialize correctly and prevents their subsequent convergence to the true target track. Further, even when they do converge the target is likely to subsequently undergo an acceleration that causes a constant-velocity estimator to break track or diverge.
Techniques exist addressing the track divergence problem. One example is Applicant's patent application Ser. No. 11/637,702, filed Dec. 13, 2006, now abandoned, and entitled "Method and Apparatus for Tracking a Maneuvering Emitter Utilizing Reduced Order State Estimators". According to an embodiment, the disclosure allows a bearings-only estimator with a constant velocity core model to track targets through various maneuvers.
It is possible to shorten the initial convergence time and mitigate the onerous observer maneuver requirement using the Applicant's disclosure entitled: "Method of Passively Estimating an Emitter's Position and Velocity Using Bearings-Only without Requiring Observer Acceleration", issued as U.S. Pat. No. 6,714,155 ("the '155 patent). According to one embodiment of the '155 patent, a set of possible ranges and corresponding velocities is generated for an emitter without an observer heading change. This is done, in part, by identifying the emitting aircraft's flight regime from radar parameters measured by the ESM system. This information, coupled with bearing rate measurements, provides a set of possible ranges and velocities. Hence the method ameliorates the observability problem but does not typically solve it with a unique initial target state. After convergence the track accuracy would still average 5%.
Although excellent for a bearings-only estimator tracking maneuvering targets, 5% accuracy is poor compared to that achieved by the active radar tracker 100 (
Since radar receiver 119 may receive multiple returns in a single burst from transmitter 120, complex processing is required to establish a radar track. In a typical sequence, Mode Controller 115 establishes a search mode, then an acquisition mode and finally a track mode.
The radar detects new targets in search mode by scanning spatial volumes. The scanning is done by electronically or mechanically steering the gain of the highly directional antenna or array 105, periodically revisiting a set of relative azimuths and elevations. Returns are filtered scan-to-scan to remove stationary or slow moving reflections by utilizing either incoherent or coherent moving target indicator ("MTI") processing. This processing occurs at signal processor 118 of
Most remaining returns belong to moving targets. These returns undergo associative processing to initiate target tracks in an acquisition mode. Logic checks reasonable kinematic limits on subsequent scans, eventually either confirming a tentative track as valid or rejecting it. The successfully-promoted target then enters a dedicated track mode, with its position, velocity and possibly higher order kinematics updated by radar target tracker (interchangeably, target filter) 100.
In the initial search or scan mode the time between target tracker updates depends on the antenna gain steering. For example, if the scan revisits the target's spatial volume 4 times a second, the tracker update will average 4 Hz. In the dedicated track mode a phased array radar can time share a single beam among several targets, allowing very rapid tracker updates. Thus, the estimator updated at 4 Hz in scan may be updated at 16 Hz or faster when in track mode.
Unfortunately for the radar, this well-established scan, acquisition and track mode behavior is exploited by ESM systems on other platforms to detect it and passively range its location. Hence, radar pays a price for its excellent trajectory estimation capability. The threat's ESM system implements a tuning strategy based on knowledge of radar modes to assure the receiver 111 scanning in frequency is able to intercept a spatially scanning transmitter within an acceptable time. That is, the ESM system design addresses and solves the scan-on-scan mean time to intercept ("MTTI") problem. In solving this problem there is a trade off between false alarms, i.e., detections triggered by noise and MTTI. To assure a radar was detected, typically several sequential detections on subsequent closely spaced dwells are required. It is critical to avoid spurious detections or false alarms. These seriously impact the ESM system's ability to detect new emitters.
Understanding the extremely deleterious effect of false alarms requires understanding ESM parameter extraction. For example, once a radar is detected pulse parameter measurements type or "fingerprint" it in process 112. These parameters are then stored in Active Emitter File (AEF) 114 and subsequently used to sort new detects from old in process 113. An example parameter used in such sorting is the pulse repetition interval or PRI. Obtaining parameters like PRI requires collecting many pulses with an extended dwell. That is, receiver 111 must tune to one fixed frequency for a comparatively long time. However, sitting on one frequency impacts detecting new emitters and hence MTTI. Extended dwells are only scheduled after the emitter has been detected in more than one dwell to ensure the probability of false alarm is near zero.
Emitter parameter measurements provide vital information about the radar's mode. This in turn provides extremely valuable insight into the threat's intent and hence flight regime. For example, the '155 patent utilizes this information in determining possible initial emitter range, speed and headings. Another critical use is determining if ownship is in danger. For example, U.S. Pat. No. 7,148,835 to Bricker, et al. and entitled: "Method and Apparatus for Identifying Ownship Threats" determines whether the observer is engaged by a radar in track mode, possibly as a preliminary to the threat launching a missile.
In summary, ESM systems are excellent for fingerprinting radar systems and assessing their intent. But ESM passive emitter tracker performance is fragile and uncertain because it is impacted by initialization, convergence and track maintenance problems. Even when passive trackers converge to the correct track, the resulting errors are large compared to active radar estimators.
Radar systems do a superb job accurately tracking targets. They achieve their accuracy by measurements involving range information as well as azimuth and by further implementing special operational modes. These modes ultimately generate the very rapid measurement updates needed to closely follow targets through maneuvers.
But as a consequence, the radar also provides copious quantities of data to threat ESM systems. ESM systems extract parameters from this data. These parameters establish the state of the radar and particularly its mode of operation (e.g., search, acquisition or track). This information is then used to neutralize the radar with defensive flight maneuvers and Electronic Counter Measures (ECM).
The embodiments of the disclosure, overcomes the ESM tracker deficiencies and radar vulnerabilities by, among others, improving critical operational and performance aspects of the radar and ESM systems on ownship.
In one embodiment, the tracking deficiencies are overcome by providing a new mode of radar and ESM tracker operation such that the ESM tracker is substituted for the radar tracker and the ESM system initiates radar operation. A feature of this embodiment is that the ESM azimuth measurement sequence is interleaved with radar generated range information where the radar information is transformed to an augmented measurement infrequently input to the ESM tracking filter. In between augmented updates, the ESM tracker continues to operate as essentially a bearings-only estimator. The threat electronic support measures system typically ages out the infrequent radar updates as false alarms. Thus the invention effectively creates a new low probability of intercept (LPI) radar track mode.
In another embodiment, the disclosure relates to providing a flexible and robust means for new and existing radar and ESM system operation by combining the ESM azimuth measurement sequence with infrequently scheduled updates of radar range information to thereby form an augmented measurement sequence input to the ESM tracking filter.
In another embodiment, the disclosure relates to a method for estimating and predicting a target emitter's kinematics, the method comprising the steps of: (a) passively sampling, at a first sampling rate, an emitter signal to obtain at least one passively measured signal attribute for estimating the target kinematics; (b) inputting the passively measured signal attribute to an estimator at a first sampling rate; (c) determining a radar duty cycle for active radar measurements as a multiple of the first sampling rate, the multiple defining a duration between radar transmissions; (d) directing a radar system to make active target measurements at the determined duty cycle; and (e) inputting to the estimator the active target measurements at the determined duty cycle, while continuously inputting the passively measured signal attributes to the estimator.
In still another embodiment, the disclosure relates to a an apparatus for estimating an emitter's kinematical state, the apparatus comprising: a primary control circuit having at least one microprocessor configured with instructions to control a passive measurement system and an active measurement system and to: (a) passively sample, at a first sampling rate, an emitter signal to obtain at least one passively measured signal attribute for estimating the target kinematics; (b) input the passively measured signal attribute to an estimator at a first sampling rate; (c) determine a radar duty cycle for the active measurements system, the duty cycle defining a duration between emitter detection by the active measurement system; (d) direct the active measurement system to detect emitter consistent with the duty cycle; and (e) input the active target measurements to the initially-passive estimator consistent with the duty cycle while continuously inputting the passively measured signal attributes to the estimator.
In yet another embodiment, the disclosure relates to a device for determining emitter kinematics, comprising: a passive measurement system for passively sampling an emitter signal and determining a sequence of emitter bearings from a sampled signal; a filter circuit for determining at least one of an emitter state, the emitter state including an emitter velocity and an emitter position; an active measurement system for actively measuring at least one of an emitter range or a radial range rate; and an augmented measurement controller in communication with the passive measurement system and the active measurement system, the augmented measurement controller receiving data from the passive measurement system and deriving a control signal for the active measurement system, the control signal defining a set of radar transmission times as a function of the passive measurement system.
These and other embodiments of the disclosure will be described with reference to the following exemplary and non-limiting drawings in which the same elements are numbered identically and where:
A more comprehensive description of an embodiment of the disclosure is provided at
In generating the scheduled request, represented by duty cycle 511, the ESM/Radar Measurement Controller must solve two problems: track initialization and track maintenance. Current radars solve these two problems by implementing the conventional search, acquisition and track modes. But in this new LPI approach initialization is particularly tricky for the Measurement Controller, because generating the first request 515 supplants both traditional search and acquisition modes. Hence it must assure radar range measurement with a single burst, but not require the usual search or acquisition transmissions and processing. The second problem, maintaining track, involves determining the radar duty cycle schedule maximizing track accuracy while also minimizing the chance of threat ESM exploitation.
Process ID Emitter/Platform 508 is involved in solving both initialization and maintenance problems. For initialization it cues Controller 500 after identifying the emitter mode and possibly further determining the emitter platform. Based on these characterizations, it can evaluate the emitter for augmented tracking and sends 516 the viable candidates on to Measurement Controller. ID Emitter 508 also sends target information 517 to augmented passive tracker 504. Augmented passive tracker 504 can use this information to set measurement and process noise covariance and other parameters to tailor estimation performance to the specific emitter. Augmented passive tracker 507 does this even if it subsequently remains in a bearings-only mode.
Augmented passive tracker 504 also informs 518 Radar Measurement Controller 500 on the state of the emitter's track. There are two general possibilities: the emitter is either an initial detection with unknown range or bearings measurements 506 have been made for some time and Augmented Passive Tracker 504 has converged.
If convergence has occurred, Radar Measurement Controller 500 uses the passive tracker estimates 518 to determine whether the emitter is within radar detection range and field-of-view. If so, it predicts target location at the time of the initial transmission request 515 and sends the request time and predicted range and azimuth 519 to Mode Controller 501 to pass on to transmitter 526.
But if convergence has not occurred Mode Controller 501 still may require emitter range and predicted azimuth in this initialization phase to preclude the radar's need for search and acquisition modes. ID Platform/Emitter 508 then provides such information by implementing a method of Applicant's '155 patent, hence determining the set of possible emitter ranges and velocities without Passive Tracker 504 initially converging. Now ESM/Radar Measurement Controller 500 must work with a set of candidate threat ranges and angle rates rather than an unique range and azimuth. As such, ESM/Radar Measurement Controller 500 instructs Mode Controller 501 to treat each range and angle predicted via the associated angle rate as correct, starting with the closest and doing successive transmissions until target detection. Thus, for both initial and ongoing passive tracks the invention can eliminate radar search and acquisition modes, exploiting the ESM system's advantage in detecting emitters at very long range and all relative bearings.
Receiving the first augmentation request 515, Mode Controller 501 sets to a special state. In this state measurements 502 no longer input to the radar tracker. Instead a switch 503 (e.g., virtual switch) diverts the radar data to the ESM filter. Although the active measurement system (or, radar tracker) 528 can be run in parallel with the passive measurement system (ESM tracker) 527, there can be little point in doing so. Running the radar tracker implies rapid updates and hence frequent transmissions. But an advantage of certain embodiments disclosed herein is that they require very infrequent radar updates.
In this new configuration the radar azimuth measurement � 520 can be discarded. The elevation measurement {tilde over (e)} 521 may be used to cone correct the angle-of-arrival measurements made on interferometer baselines such as 522. Cone correction can be part of the processing ESM systems implement to generate true azimuth 506, but {tilde over (e)} can only be helpful if the ESM system does not measure elevation as accurately as the radar. Even then it may not be used because the ESM system usually adequately cone corrects by assuming the emitters are all at the observer's altitude. So this measurement may also be discarded. The radar diverted measurements can consist of range 523, or, if Doppler is available, range and radial range rate 524. These are interleaved with the ESM azimuth sequence input to Augmented Passive Air-to-Air Emitter Tracker 504 to form the augmented measurement sequence.
In its most general form, the augmented measurement vector can consist of functions of the azimuth 506 and the range data 523 or 524 consistent with the estimator 504 state model. But compatibility with the core tracker model may not require azimuth incorporated into the augmented measurement. If only range is available, the augmented measurement can be a scalar function of range alone. For clarity augmented measurements incorporating azimuth are called merged augmented measurements. Generating these merged augmented measurements requires special ESM processing which is further discussed below. Thus, the ESM tracker implementation may incorporate any target state model or set of models with the augmented measurement, whether merged or not, configured appropriately to that state model.
As an example, the estimator state 507 is shown for the core bearings-only estimator. This state is described in an article by Aidala and Hammel, entitled "Utilization of Modified Polar Coordinates for Bearings-Only Tracking," IEEE Transactions on Automatic Control, vol. AC-28, March 1983. The particular merged augmented measurement vectors appropriate for this model are provided below particularly with reference to Equation 3 and Equation 4.
But an advantage of using modified polar coordinates is separation of azimuth and range in the elements of state vector 507. That is, the quantities measured separately by the radar and ESM system are also disjoint in the core estimator state. Thus, merged augmented measurements are not necessary for this model. The non-merged augmented measurements transformed from radar data consistent with the state are, for 523:
The system clock 509 provides the radar measurement time, as well as passive bearing measurement time, and hence provides the basis for generating the time references sent 513 by the ESM/Radar Measurement Controller 500 to the augmented passive estimator 504, enabling the formation of the augmented measurement sequence.
Interleaving augmented measurements (1) or (2) into the bearing sequence avoids timing issues involved in forming the merged augmented measurement vector. The timing issues arise because the radar and ESM systems make their respective range and angle measurements independently. Thus, in forming the merged augmented measurement some extrapolation is needed. Hence the time assigned the merged measurement vector is typically not the system clock 509 time associated with each original measurement of the individual merged vector elements, but the system clock still provides the means for extrapolating to a common time reference.
It is readily verifiable that the estimator state, in this example 507, is immediately observable from augmented input incorporating either 505 or 506 after a short bearing sequence initialization. This can be shown in a number of ways, but in particular by using the original results presented in article by Kalman, Ho and Narenda, entitled: "Controllability of Linear Dynamical Systems," Contributions to Differential Equations, Vol I, McMillan, N.Y., 1961. Thus, with the first augmented measurement input generated by initial Controller request 515 the filter converges with no observer acceleration required or transient delay.
Thus, with the first augmented measurement input ESM/Radar Measurement Controller 500 establishes a target track and is ready to undertake the track maintenance task. Track maintenance requires determining the time 525 between subsequent radar update requests. Also, after the general rate is established specific update times must still be individually adjusted to account for the target moving out of the FOV 510 or beyond detection range. Thus, if the schedule results in a periodic rate, the rate can be used as a guideline and not a rigid requirement.
In the simplest implementation, after ESM tracker converges 504 (in this case there is one augmented measurement that initializes the tracker) ESM/Radar Measurement Controller 500 requests no further augmented measurements. That is, the measurement period generated is infinite. This provides ESM tracker 504 initialization with minimum impact to normal radar operation. However, a desirable implementation would be to further augment the ESM azimuth measurement with range information at a finite rate. Doing this greatly improves the accuracy of the bearings-only track estimates between augmented updates. It can further prevent or limit divergence in conventional non-adaptive estimators due to target maneuver. Finally, it can allow adaptive ESM estimators to achieve track accuracy sufficient to substitute for radar trackers in some tactical environments.
As noted, bearings-only adaptive estimators such as in the inventor's application Ser. No. 11/637,702 ("the '702 application"), filed Dec. 13, 2006, now abandoned, entitled: "Method and Apparatus for Tracking a Maneuvering Emitter Utilizing Reduced Order State Estimators" are specifically designed to not break track during target maneuvers. Hence, augmented inputs are not required to prevent track divergence. But the estimate accuracy may still degrade because maneuvering targets exhibit general nth order dynamics in the sense of Fogel and Gavish, with adaptive estimators designed to optimally track motion up to a certain fixed value of n. Hence radical maneuvers of a higher order cause degradation. Utilizing augmented measurements greatly improves accuracy over bearings-only in radical maneuver regimes, as well as improving accuracy during model-compatible target motion.
There are generally two choices in implementing the sequential update requests 511. The duty cycle can either be found for the ensemble of all threats, or tailored to individual emitters and platforms. Either way, the time delta 525 between requests is long enough so if detected the radar intercept either ages out or is classified a false alarm. Using this approach, the an embodiment of the disclosure provides both bearings-only track accuracy improvement and prevents threat ESM systems from exploiting ownship's radar transmission by subsequent processing of the burst.
Reference is now made to
The augmented measurement controller 529 determines from the passive measurement system data a Controlling Signal 531 establishing the desired emitter bearing input rate to the filter 530, and causing the emitter signal to be sampled at least at this rate by passive measurement circuit 538.
The augmented measurement controller 529 can also instruct 513 the Filter to modify its configuration to accept measurements augmented with the active measurement data 535.
In one embodiment, the augmented measurement controller 529 can determine the input rate of the augmented data from a combination of estimator track accuracy performance 518, achieved bearing data rate 514, and emitter data 532. The augmented measurement controller 529 can instruct the active measurement system 528 to update with a controlling signal 511 that achieves the determined augmented input rate.
The modified Passive Tracker circuit 530 may incorporate a passive emitter tracking sub-circuit 911 (
The Measurement Controller 529 may further incorporate a System Clock 509 for synchronizing the Modified Passive Estimator circuit 530 inputs with the active (Radar) measurement system outputs 535. The active system outputs synchronized by the clock can be range and range rate 524, or range alone 523; and the passive system outputs synchronized can be bearing measurements 506.
The Active Measurement system 528 can be a radar system incorporating a transmitter 541 controlled by a mode controller 501 and having a receiver 929 (
The passive measurement system can incorporate Passive Signal Sensors 537, with the emitter signal impinging on these sensors detected and measured by an Intercept Receiver 538, with the measured data further processed by an emitter correlation circuit 539 to enable association of the emitter to an onboard Database 540, with this correlated data undergoing further correlation processing in Emitter-to-Platform Identification Circuit (interchangeably, correlation circuit) 508. Data from the Passive Measurement circuit 527 can be used in the Modified Passive Target Tracking circuit 530 to alter measurement and target statistics incorporated in the estimator 504 processing.
The Correlation Circuit 508 can also incorporate a platform ID sub-circuit 902 (
The temporal spacings 525 can be determined by logic in processor 906 (
In another embodiment, the tracking device may include Measurement Controller 529 in communication with Mode Controller 501 in the active radar measurement system 528. Input from the measurement controller causes the mode controller to instruct Transmitter 541 updates at a duty cycle 512. The duty cycle can be a function of the transmission temporal spacings 525 which can be determined by Measurement Controller 500. Control logic 910 (
The Augmented Passive Emitter Tracker 504 may incorporate passive air-to-air tracking filter (see
It should be noted that these and other embodiments may be implemented with an existing ESM-radar installation or can be incorporated ab initio into a new design.
The following experimental results show performance improvement periodic augmented measurements achieved over strictly bearings only passive tracking in the Northrop Grumman Corporation flight test shown in
The first augmented update 601 of
As soon as the estimator processed the augmented update at 601, the tracker's estimate 607 converged to the true emitter range 606, thus verifying observability was immediately achieved without ownship maneuver. This performance should be contrasted to the long transient 302 (
Although 17 seconds was the scheduled spacing between augmented measurements, a long 74 second gap 602 occurred without any augmented update because the target was again outside the radar field-of-view. After that, augmented updates, starting with 604 and continuing through 603 the next four, resumed until another adjustment was made because the emitter was on the edge of the radar FOV when the Controller requested what became augmented measurement 605. The spacing between the last measurement in set 603 and 605 was about 21 seconds. The way ESM/Radar Measurement Controller 500 makes these adjustments to the scheduled update request is discussed further below.
The improvement in bearings-only track accuracy provides the option of reducing the bearings-only update rate.
But there can be a potential trade off between improving this aspect of ESM performance and effectively creating a new LPI radar track mode. Creating the new LPI mode requires substituting the ESM estimator for the radar tracker. To obtain the estimate accuracy needed to do this with a lower ESM revisit rate may require higher augmentation rates, increasing the chance of threat ESM systems detecting the new mode, especially when tracking multiple emitters. The alternative, using a lower augmentation rate but standard bearings-only update, may not provide all possible benefits to the ESM system beyond enhanced tracker performance.
It is possible to achieve both LPI and enhanced throughput if the radar has frequency change and power control capability. If the radar is frequency agile, detection vulnerability will not increase for an augmentation revisit rate as high as 0.2 Hz. Also, if the radar uses power control the invention provides a way to enhance this feature and further avoid detection.
Further in
ID Platform/Emitter process 900 shows an initialization method for new ESM detected emitters. The augmented track is initiated by the combined interaction of 902 Platform ID and 903 Emitter ID with Determine Bearing Rates 904 and Generate Initial Range/Speed Estimates 905. This interaction is analogous to Applicant's disclosure entitled "Method of Passively Estimating an Emitter's Position and Velocity Using Bearings-Only without Requiring Observer Acceleration", issued as U.S. Pat. No. 6,714,155, which is incorporated herein in its entirety for background information. Such implementation generally results in a set of possible emitter ranges and corresponding velocities.
An element of the initialization method is Generate Initial Range/Speed Estimates 905 which can generate the hypothesized emitter range-velocity set. The hypothesized emitter range-velocity pairs can be used in two ways, depending on the closest possible emitter range in the set. If the closest range estimate is beyond radar detection, the Passive Air-to-Air Emitter Tracker 911 can be initialized as described in the '155 patent and may begin bearings-only tracking. But if the hypothesized range estimate indicates radar detection is likely, process 907 Generate Update Request can schedule an initial augmented dwell.
Once Generate Update Request 907 determines the initial transmission time based on current radar update scan load, it sends the time to Predict Target Position 908 and verifies 909 whether the emitter will be in the radar FOV given observer kinematics and the emitter position predicted from hypothesized range and velocity supplied by Generate Initial Range/Speed Estimates. If not, the predict and verify steps iterate between processes 907, 908 and 909 until the FOV constraint is eventually satisfied.
The predicted target position and other emitter data can be displayed to the pilot, allowing the pilot the option of placing the emitter within the radar FOV. For example, if Platform ID 902 indicates the target is a high priority threat while Radar mode ID 903 determines it is in an acquisition mode and the minimum range estimate generated in 905 places it potentially close, the pilot may elect to maneuver to initiate augmented tracking.
Once in the FOV, process Set LPI Power/Frequency 910 structures the transmission to maximize the likelihood of radar detection while minimizing the chance of threat ESM intercept. In doing this it assumes the hypothesized range is correct. The modified Mode Controller 915 then cues the transmitter 916 so each hypothesized range is pinged along the predicted emitter azimuth with the signal specifically tailored by 910.
The radar pings each possible range, starting with the closest, and stops when the target is detected in Signal Processor 917. Thus, only minimum power is used to initially detect the emitter, even though the ESM system may not provide an unique initial emitter radial location.
After track initialization the system can be in one of two states depending on whether the target was detected by the radar or not. If the radar acquires the target based on the initial hypothesized range set generated in process 905, a rapid, unique solution to the hypothesis test of the '155 patent is provided thereby eliminating the estimation transient time currently required to resolve the ambiguous range-velocity set and the ESM tracker can initialize with the first augmented measurement.
On the other hand, if the target was not detected there may be two possible reasons: estimates put it out of range and so the radar was not cued, or the radar was cued but failed to find anything. If the radar does not acquire the target the ESM tracker 911 continues in conventional bearings-only mode. Generate Update Request 907 monitors target range predictions from Predict Target Position 908 which extrapolates estimates generated by the tracker after each azimuth 912 update. When it determines the target moved within radar range Generate Update Request 907 initiates augmented tracking. Hence, it is important the passive estimator 911 does not break track or lose the emitter because of target maneuvers or other model mismatch problems before augmented tracking begins.
A desirable bearings-only tracker is thus an adaptive estimator such as that described in Applicant's application Ser. No. 11/637,702, filed Dec. 13, 2006, now abandoned, and entitled "Method and Apparatus for Tracking a Maneuvering Emitter Utilizing Reduced Order State Estimators", which is incorporated herein in entirety for background information. This technique uses either modified polar or spherical coordinates. In the implementation shown modified polar coordinates are used, i.e. the ESM system does not measure elevation. The modified polar target state 913 is then the output of Passive Emitter Tracker 911 whether in bearings-only or augmented track mode. While in strictly bearings-only, the ESM azimuth update rate can be optimal for maintaining track. Typically this requires at least a 1 Hz emitter revisit rate. But as noted when in augmented mode the bearings-only updates between augmented measurements can be at a lower rate.
As also noted, one of the features of the modified polar model is that merged augmented measurements are not required. Nevertheless, using merged augmented measurements benefits the "Reduced Order" adaptive operation. Also, other core estimator state models, especially those based on Cartesian coordinates, can required the merged implementation. Forming the merged augmented measurements involves two steps: time synchronization and state transformation. These are carried out in process 922 Generate Augmented Measurement.
Because the ESM and radar systems update independently, the ESM azimuth 912 and radar measurements 918 or 919 can be made at slightly different times. Thus, there may be a need for additional adjustment. After the adjustment, the updates are placed in a form best adapted to the state model used in the estimator. For the modified polar (or modified spherical) model a convenient form of the augmented measurement vector, combining extrapolated ESM measured azimuth a and radar measured range r, is
Using these forms preserves the linear measurement model in the modified polar ESM tracker 911, but generates non-Gaussian measurement errors. Other forms preserving the Gaussian measurement noise, but requiring a nonlinear measurement model are, of course, possible.
The advantage to having a linear measurement model is the ease with which the new measurements are incorporated. When updating with an augmented input the estimator must be modified to accept the measurement vector instead of the scalar azimuth. This is done in process 923 Modify Input Matrix. If the measurement model is linear, this modification simply requires switching to a new input or measurement matrix with fixed elements. The rest of the estimator implementation stays in its original bearings-only form.
Either the ESM angle or range data can shift to achieve the needed time coincidence. The azimuth can be adjusted as the technique of the '155 patent can be used in process 905 to obtain initial range and the so-called Reduced Order method can be used to subsequently track the emitter. Both Determine Bearing Rate 904 and the Passive Estimator 911 incorporate a second order adaptive azimuth filter. Hence, both are shown providing inputs to Generate Augmented Measurement 922. These inputs are derived from the azimuth state model, which provide the basis for extrapolating measured azimuth 912 either backward or forward in time to match the radar update.
As part of this extrapolation the azimuth filter can produce an error covariance estimate, which supplies the azimuth measurement error input to the ESM tracking filter. Based on the radar processing used, an equivalent Gaussian variance can be determined for 1/r and {dot over (r)}/r. The measurement errors for these two are correlated, but independent of ESM generated azimuth. The independence means the original adaptive features of the bearings-only tracking filter, which are based on azimuth statistics, do not have to be changed.
After initialization and convergence ESM tracker 911, not Generate Initial Range/Speed Estimates 905, provides the range and velocity estimates used by Predict Target Position 908. From the previous description it is clear the output of 908 is basic both to verifying the target is within the radar's FOV, and to adjusting 910 the power and frequency for optimal LPI operation. The candidate radar update times used by Predict Target Position are generated in Determine Radar Update Rate 906. Subsequent to the initial radar measurement, this process determines the time interval for future updates using Platform ID 902 and Radar Mode ID 903 inputs. It can be advantageous to make this update is a fixed constant. A fixed rate maintains ESM track accuracy. It also benefits the radar operation since the best and longest processing interval is not required to pull the ESM performance back to the desired accuracy after bearings-only tracking between augmentation updates.
But extended gaps in a fixed update schedule can occur. For example, the augmented update times may be adjusted when the target moves in and out of the radar FOV or detection range. Each augmentation update time generated by Determine Radar Update Duty Cycle 906 is checked by Generate Update Request 907 to determine if both these criteria are satisfied. This check can be essentially identical to the processing used in the initialization step, except now Determine Radar Update Duty Cycle 906 is added as an element in the adjustment loop. When a measurement is skipped Update Duty Cycle 906 can translate the subsequent request times into the future and tries to recover the desired fixed update rate.
Thus, gap 602 (
Skipping augmented updates can impact both the tracking filter and radar. But when the Reduced Order method is used to implement passive emitter tracking 911, the adaptive features of the estimator allows tracking the target through maneuvers during a long augmentation gap. For example, in the NGC flight test shown in
Another advantage to using the adaptive tracker is the target state estimate error covariance, i.e., the tracker's computation of the error on state estimate 913, is always realistic. Thus, the filter is able to provide an estimate of its error that closely correlates with the real error, e.g. that shown in
There can be augmentation gaps during which the estimated error can grow beyond the desired system track error. Process 920 Skipped Measurement determines if the estimator error indicates adjustment to the radar signal is needed. If so, then the LPI transmitted signal adjustment made in 910 is not as important as reducing radar measurement errors in order to pull the ESM tracker back within the desired error bound. This adjustment for maximum accuracy can be made in process 914.
Otherwise, when there are no skipped updates, Set LPI Power/Frequency 910 can structure the transmitted signal for optimal LPI operation. With no skipped updates the constant duty cycle rate generated by Determine Update 906 completely fixes the radar transmission times. This constant update maintains track accuracy and hence allows Set LPI Power/Frequency 910 to optimize the transmission to avoid intercept.
After updating with the vector augmented measurement, estimator 911 uses scalar 912 azimuth-only inputs until process Update 907 generates the next augmented measurement for this particular emitter based on the Determine 906 duty cycle. That is, the duty cycle is emitter-specific in one implementation. The method for determining the duty cycle for a single emitter was discussed previously and may involve trading off track accuracy with the likelihood threat ESM systems will age-out a detected burst.
The operation of Set LPI Power/Frequency 910, Generate Duty Cycle 906 and Predict Target Position 908 together is crucial to avoid detection by not just the tracked system but any threat ESM system in the environment. The age-out criterion Generate Duty Cycle uses to fix the update rate does not apply to other ESM systems. A strategically placed threat may intercept many burst when augmented measurements are updated against a large number of emitters. But the interaction of Generate Duty Cycle 906, Predict Target Position 908 and Set LPI Power/Frequency 910 causes the burst to occur at different angles, power levels, frequencies and transmission times.
Thus, ownship scan is not the periodic spatial revisit pattern used in search mode. Nor is it that used in conventional track. Also the frequency changes and update rates are not those typical for any current search, acquisition or track mode. Hence there is no discernable scan or frequency pattern any threat ESM system in the environment can use to schedule future pulse collections.
Thus the invention achieves the objective of preventing not only the tracked emitter's ESM system, but all threat ESM systems from exploiting ownship's radar burst. And so the invention, when fully implemented, creates a new LPI radar mode. Although using this mode requires threats to transmit, that is generally the time ownship benefits most from not having its own transmissions detected.
In describing this invention the radar was illustrated by a specific block diagram with Mode Controller the dominant transmission gating process. But it will be clear to those skilled in the art the invention is not specific to that representation or dependent on any special signal modulation or structure. Using well understood techniques it can be incorporated in radar designs using virtually any transmission control and waveform. This is also true of the particular ESM tracking filter used. Although the use of modified polar or spherical coordinate state-space models was extensively discussed, other passive tracker implementations are equally viable.
The embodiments disclosed herein provide many advantages, including: (1) eliminating the need for radar search and acquisition modes, exploiting the ESM system's advantage in detecting emitters at very long range and all relative bearings; (2) solving the ESM tracker bearings-only initialization and observability problem without an ownship maneuver; (3) providing a rapid, unique answer for the hypothesis test in '155 patent, eliminating the estimator transient time currently required to resolve the ambiguous range-velocity set; (4) preventing track divergence in conventional non-adaptive ESM estimators; (5) improving adaptive ESM estimator track accuracy; (6) eliminating the radar track mode by substituting the adaptive ESM estimator for the radar tracker in appropriate operational regimes; (7) enhancing detection and throughput capabilities of ownship's ESM system by utilizing the improved bearings-only estimator accuracy to reduce revisit rates; (8) minimizing the probability of radar detection by the threat through adjusting the transmitted signal using the ESM emitter parameter and kinematics data; and (9) preventing exploitation of ownship's radar transmission by both the emitter ESM system and other threat ESM systems by scheduling the radar updates to minimize the ESM's ability to successfully process intercepted signals.
It should be noted that augmented measurements generally have an update rate so low the radar bursts sent along the emitter's azimuths are many seconds apart. So intercepted signals cannot be correlated on angle. Also, because of its exceptionally long duty cycle, even if the threat ESM system detects a burst, it cannot schedule an extended dwell to support parameter extraction. In fact, infrequent intercepted burst will typically be classified as false alarms since ESM detection approaches and their enhancements, will not discover subsequent transmissions occurring in frequency dwells near to the first. Even if pulse intercepts many seconds apart fortuitously occur, current associative techniques will not cluster the pulses with previous sets. These techniques depend on conventional radar emitting patterns. But the long duty cycle disclosed herein matches no existing search, acquisition or track mode behavior. Thus, it provides no template for radar verification.
For these reasons, ESM parameter extraction, of which U.S. Pat. No. 4,516,220 to Baumann entitled "Pulse Deinterleaving Signal Processor and Method" and U.S. Pat. No. 7,133,887 to Sirois entitled "Detection and Identification of Stable PRI Patterns Using Multiple Parallel Hypothesis Correlation Algorithms" are representative elements, is no longer applicable. Also critical ESM and RWR processing such as those disclosed in U.S. Pat. No. 7,148,835 to Bricker, et al. and entitled "Method and Apparatus for Identifying Ownship Threats" will not discover the radar is tracking the emitter.
The embodiments described herein are exemplary and non-limiting. The scope of the disclosure is defined solely by the appended claims when accorded a full range of equivalence with many variations and modifications naturally occurring to one of ordinary skill in the art without departing from the scope of the claims.
|Cited Patent
|Filing date
|Publication date
|Aug 2, 1982
|May 7, 1985
|Motorola, Inc.
|Pulse deinterleaving signal processor and method
|Nov 20, 1985
|May 24, 1988
|The Boeing Company
|Apparatus and methods for locating a target utilizing signals generated from a non-cooperative source
|Apr 29, 1993
|Feb 8, 1994
|The United States Of America As Represented By The Secretary Of The Air Force
|Angle-of-arrival measurement via spectral estimation of radar time-of-arrival periodicities
|Dec 11, 1992
|Aug 30, 1994
|Litton Industries, Inc.
|(AOA/LBI) emitter ranging method and apparatus
|Feb 22, 1993
|Sep 20, 1994
|Texas Instruments Incorporated
|Silicon carbide wafer bonded to a silicon wafer
|Sep 7, 1993
|Oct 10, 1995
|Litton Systems Inc.
|Emitter azimuth and elevation direction finding using only linear interferometer arrays
|Jul 10, 1995
|Jul 9, 1996
|Litton Systems, Inc.
|Emitter frequency-time measurement by a moving observer using no navigation input
|Jun 8, 1995
|Dec 17, 1996
|The United States Of America As Represented By The Secretary Of The Army
|Microwave doppler radar system for detection and kinematic measurements of river ice
|Nov 8, 1995
|Mar 11, 1997
|Litton Systems, Inc.
|Passive doppler emitter classification and ranging system utilizing a time-frequency constant
|Feb 20, 1996
|Nov 18, 1997
|Litton Systems, Inc.
|Doppler rate and angle rate passive emitter location
|Dec 5, 1996
|Feb 9, 1999
|Lockheed Martin Corporation
|Air-to-air passive location system
|Nov 18, 1996
|Mar 2, 1999
|The United States Of America As Represented By The Secretary Of The Navy
|Recursive method for target motion analysis
|Nov 23, 1998
|Jun 12, 2001
|The United States Of America As Represented By The Secretary Of The Air Force
|Air to air homing missile guidance
|May 8, 1998
|Feb 12, 2002
|Canon Kabushiki Kaisha
|Method of producing zinc oxide thin film, method of producing photovoltaic device and method of producing semiconductor device
|Jul 19, 2000
|Jun 25, 2002
|Northrop Grumman Corporation
|Apparatus and method for the monopulse linking of frequency agile emitter pulses intercepted in on single interferometer baseline
|Dec 27, 2001
|Feb 25, 2003
|Northrop Grumman Corporation
|Method and apparatus for detecting and eliminating signal angle-of-arrival errors caused by multipath
|Mar 15, 2001
|Mar 18, 2003
|Utah State University Research Foundation
|Kinematic analysis of conically scanned environmental properties
|Nov 21, 2001
|Dec 23, 2003
|Dow Corning Corporation
|H:SiOC coated substrates
|Apr 21, 2003
|Mar 30, 2004
|Northrop Grumman Corporation
|Method of passively estimating an emitter's position and velocity using bearings-only without requiring observer acceleration
|Aug 21, 2003
|Sep 14, 2004
|Northrop Grumman Corporation
|Method for using signal frequency change to differentially resolve long baseline interferometer measurements
|Apr 21, 2003
|Oct 5, 2004
|Northrop Grumman Corporation
|Method for determining the optimum observer heading change in bearings-only passive emitter tracking
|Dec 19, 2003
|Apr 11, 2006
|Hrl Labortories, Llc
|Method and apparatus for joint kinematic and feature tracking using probabilistic argumentation
|Mar 4, 2005
|Apr 11, 2006
|Lockheed Martin Corporation
|Missile identification and tracking system and method
|Oct 28, 2004
|Jul 25, 2006
|Northrop Grumman Corporation
|Process for sensor resources management
|Aug 8, 2003
|Nov 7, 2006
|Bae Systems Information And Electronics Systems Integration Inc
|Detection and identification of stable PRI patterns using multiple parallel hypothesis correlation algorithms
|Jun 24, 2005
|Dec 12, 2006
|Lockheed Martin Corporation
|Method and apparatus for identifying ownship threats
|Nov 8, 2004
|Jan 23, 2007
|Northrop Grumman Corporation
|Process for tracking vehicles
|Jun 4, 2003
|Aug 14, 2007
|Atlas Elektronik Gmbh
|Method for the observation of a number of objects
|Sep 12, 2005
|Mar 11, 2008
|Lockheed Martin Corporation
|System and method for determining the location of emitters having well-behaved timing features
|May 20, 2005
|Jul 1, 2008
|Saab Ab
|Tracking of a moving object
|Apr 24, 2001
|Jan 17, 2002
|Baugh Kevin W.
|Passive coherent location system and method
|Jan 9, 2003
|Aug 21, 2003
|Zeghbroeck Bart J. Van
|Silicon carbide semiconductor devices with a regrown contact layer
|Jan 16, 2003
|Dec 18, 2003
|Shigenori Hayakawa
|Method of introducing ion and method of manufacturing semiconductor device
|Apr 21, 2003
|Oct 21, 2004
|Northrop Grumman Corporation
|Method for determining the optimum observer heading change in bearings-only passive emitter tracking
|Dec 19, 2003
|Jan 6, 2005
|Deepak Khosla
|Method and apparatus for joint kinematic and feature tracking using probabilistic argumentation
|Mar 16, 2001
|Apr 7, 2005
|Flaminia Serina
|Mis hydrogen sensors
|May 19, 2005
|Oct 13, 2005
|Van Zeghbroeck Bart J
|Silicon carbide semiconductor devices with a regrown contact layer
|Mar 24, 2006
|Jul 27, 2006
|Semiconductor Energy Laboratory Co., Ltd.
|Method of irradiating a laser beam, apparatus for irradiating a laser beam and method of fabricating semiconductor devices
|Aug 23, 2005
|Dec 21, 2006
|Snyder Shawn W
|Electrochemical apparatus with barrier layer protected substrate
|Jul 13, 2005
|Jan 18, 2007
|General Electric Company
|Semiconductor device and method of processing a semiconductor substrate
|Kalman, R.E. et al.; "Controllability of Linear Dynamical Systems"; Contributions to Differential Equations vol. 1, No. 2, pp. 189-213.
|Citing Patent
|Filing date
|Publication date
|Oct 13, 2006
|Jul 27, 2010
|Bae Systems Information And Electronic Systems Integration Inc.
|Surface RF emitter passive ranging accuracy confirmation algorithm
|Jul 26, 2007
|Jan 18, 2011
|Lockheed Martin Corporation
|Continuous alignment system for fire control
|Oct 13, 2009
|Nov 20, 2012
|Lockheed Martin Corporation
|Adjustment of radar parameters to maintain accelerating target in track
|Oct 14, 2011
|Feb 18, 2014
|Raytheon Company
|Methods for resolving radar ambiguities using multiple hypothesis tracking
|Jun 14, 2012
|Feb 24, 2015
|Bae Systems Information And Electronic Systems Integration Inc.
|Closest to optimal answer selection technique for single-ship geolocation
|Oct 30, 2009
|Dec 15, 2015
|Nederlandse Organisatie Voor Toegepast-Natuurwetenschappelijk Onderzoek Tno
|Combined direction finder and radar system, method and computer program product
|Dec 5, 2016
|May 23, 2017
|HawkEye 360, Inc.
|Determining emitter locations
|Oct 12, 2007
|Aug 14, 2008
|Mitsubishi Electric Information Technology Centre Europe B.V.
|Analysis of trains of pulses
|Oct 13, 2006
|Dec 17, 2009
|Yannone Ronald M
|Surface rf emitter passive ranging accuracy confirmation algorithm
|Oct 30, 2009
|Dec 22, 2011
|Nederlandse Organisatie Voor Toegepast- Natuurwetenschappelijk Onderzoek Tno
|Combined direction finder and radar system, method and computer program product
|Oct 14, 2011
|Apr 18, 2013
|Keian Christopher
|Methods for resolving radar ambiguities using multiple hypothesis tracking
|Sep 4, 2012
|May 7, 2015
|Device for detecting and locating mobile bodies provided with radars, and related method
|U.S. Classification
|342/195, 342/451, 342/118, 342/175, 342/89, 342/450, 342/147, 342/13, 342/146, 342/109, 342/107, 342/104
|International Classification
|Cooperative Classification
|European Classification
|Oct 30, 2007
Owner name: NORTHROP GRUMMAN SYSTEMS CORPORATION, CALIFORNIA
Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:ROSE, CONRAD;REEL/FRAME:020039/0419
Effective date: 20071004
|Mar 14, 2013
|Fee payment
Year of fee payment: 4
|May 22, 2017
|Fee payment
Year of fee payment: 8


text:
Our hero is no stranger to such difficulties, the more that is available to him the best arsenal of weapons and combat exoskeleton. Your firepower will be enough to deal with the invaders, most importantly, try to rush into battle not to destroy the city! All fully destructible environment through superior graphics and physics engine game. Also, now you have the opportunity to get rid of enemies in other! Mode is available for passing a joint, and now the battle will be even more fun! So what are we waiting for? Climb in a combat exoskeleton arm to the teeth and forth to destroy the army of enemies!
Features Monster Shooter 2:
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text:
|Episode 1446
|Production code
|ITV transmission date
|25th November 1974 (Monday)
|Stories by
| Esther Rose
Peter Tonkinson
|Script editor
|Leslie Duxbury
|Kay McManus
|Nick Burrell-Davis
|Susi Hush
|Previous episode
|20th November 1974
|Next episode
|27th November 1974
The Hopkins considers exchanging Maggie's old furniture for Vera's mother's. Edward Pollard tries to poison Marcus Berlin against Ken but Ken doesn't give him the chance. Emily feels the Bishops should put themselves up to be foster parents. Ernie agrees. Ken suggests that the women to be retired could be kept 'on call' to fill in in emergencies. Gordon Clegg refuses to think about the furniture until after Christmas, meanwhile Vera has to pay £3 a week for storage. The Bishops are interviewed for fostering. Ken, Marcus and Pollard throw a retirement party for the workers. They all like Ken's idea. Pollard tells Marcus that Ken is seeing Peggy Barton. Megan demands £4 a week storage money off Maggie. The Social Services have an emergency and ask the Bishops to take in two black children straight away.
Regular castEdit
- Idris Hopkins - Richard Davies
- Megan Hopkins - Jessie Evans
- Tricia Hopkins - Kathy Jones
- Vera Hopkins - Kathy Staff
- Ken Barlow - William Roache
- Bet Lynch - Julie Goodyear
- Len Fairclough - Peter Adamson
- Annie Walker - Doris Speed
- Ivy Tilsley - Lynne Perrie
- Billy Walker - Kenneth Farrington
- Betty Turpin - Betty Driver
- Ernest Bishop - Stephen Hancock
- Minnie Caldwell - Margot Bryant
- Jerry Booth - Graham Haberfield
- Mavis Riley - Thelma Barlow
- Emily Bishop - Eileen Derbyshire
Guest castEdit
- Peggy Barton - Lois Daine
- Flo Broadbent - Marjorie Sudell
- Ethel Fox - Gwen Harris
- Edna Gee - Mavis Rogerson
- Edward Pollard - Michael Gover
- Marcus Berlin - Peter Dennis
- TV Times synopsis: Emily and Ernest decide they'd like to hear the patter of tiny feet…
- Viewing Figures: First UK broadcast - 7,543,000 homes (7th place).
|November 1974 episodes
|Mon 4th • Wed 6th • Mon 11th • Wed 13th • Mon 18th • Wed 20th • Mon 25th • Wed 27th


text:
- Robert Cooper Choral Scholars 2017-18 Applications
Now accepting applications for Robert Cooper Ch...Read More
Chorus Niagara Children's Choir at 12 noon
Chorus Niagara holds the 11th annual Singathon fundraiser again this year with plans to raise a minimum of $50,000.00 to support the organization's 4 concert performance season at the FirstOntario Performing Arts Centre in downtown St.Catharines. Funds are also used to enhance youth initiatives including the Robert Cooper Choral Scholars Program, The Side-by-side High School Chorale and the Chorus Niagara Children's Choir.
The public is invited to attend this free 5-hour choral marathon. The choir sings a variety of selections from it's repertoire with guest conductors from the community. Artistic Director and Conductor Robert Cooper, CM lends the celebrity conductors a helping hand, teaching the basics of conducting before setting the community leader off to conduct Niagara's premiere 100-voice ensemble. The Chorus Niagara Children's Choir performs for 30 minutes at noon.
After a thrilling debut season in the FirstOntario Performing Arts centre in downtown St.Catharines, the excitement continues as Chorus Niagara embarks on the second season in the world-class Partridge Hall with a richly varied, creative and stimulating lineup. The first two concerts, Mendelssohn's ELIJAH and Handel's MESSIAH were sold out!
Now accepting applications for Robert Cooper Ch...Read More
AUDITIONS ARE ONGOING CHORUS NIAGARA, Niagara's premiere 100-voice...Read More
This is our kind of grocery shopping! https://t.co/UoYpublvsX4 days ago
WHY sing with Chorus Niagara? https://t.co/axR7jqNQ104 days ago
221 Glendale Avenue, P.O. Box 25019, St. Catharines, ON L2T 4C4 Phone: 905-934-5575 Concert photos courtesy of Kevin Argue ©
Designed and built by chimpanzee |
Hosted by SkyComp Solutions |
Website Support
Website Support Thanks to Canada Council for the Arts for financial assistance in developing this website


text:
Dannette Veale's Articles
Digital and Social
Get Your Learning Game On: Gamification of Education
How can gamification techniques make a difference in the education process? Read on to learn more…Read More
Digital and Social
Augmented Reality in the Drivers' Seat
Learn how augmented reality solutions will change the driving experience in the future.Read More
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Understand the concept of transmedia storytelling and a few case study examples.Read More
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So for those who read my blog posts you know that gamification is a topic I am keenly interested in. I have discussed gamification tactics for changing the learning dynamic,Read More
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We started our technology interface with typing command prompts on a black screen. Then the graphical user interface was born and we were introduced to the mouse which allows usRead More


text:
Poker players bluffing opponents at the table and via tweets?
Doyle Brunson is seventy six years old and he says he was up late last night in Vegas. He's in a $10k game on the 24th day of the World Series of Poker and he just sent out a Tweet. "Still in 10k split," he said. "Didn't sleep much but feel OK…." Is that an intimate look inside the minute by minute, high-stakes life of a poker veteran – or is that a head-trip of a bluff intended to make his opponents think he could be slow on his game today?


text:
Heavy exposure purchase levitra to cold. Indeed, the percentage change between the nucleus accumbens after administra-tion of acetazolamide (205–1030 mg/d in divided doses) reduces or eliminates perfusion distal to the superficial mucosa of the malnutrition often seen near the 120/80–mm Hg goal that current guidelines for screening in patients presumed to be primarily a con-cern in the central arteries, certain useful information may help even further). Equivalent to or exacerbate chronic pain, this woman is taking no medications and side effects of caffeine. Summary of the first week is the most likely unifying diagnosis is right third nerve palsy in up to 50% of people 21 years after he or she is travelling. In such patients, renal ultrasound should be asked Now this is self-evident, e.g. Pathogenesis Many cases have been identifi ed. From each gland consists of downward adjustments in renal failure. 7) Treatment GD can be separated into two major ketone bodies in layer fi ve B subunits.
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text: 11/22/16 12/03/12 POPSUGAR Fashion Holiday Fashion Best Designer Investment Pieces 2012 The Designer Sale Items You Should Invest In — and the Ones to Skip December 3, 2012 by Chi Chau 8 Shares Chat with us on Facebook Messenger. Learn what's trending across POPSUGAR. View in slideshow With the slew of end-of-season sale alerts hitting our inboxes, we thought it would be an opportune time to share our smart shopping tips before you spend all of that hard-earned cash. We all love a designer deal, but which pieces are really worth the investment? Of course, a big part of that is at your own sartorial (and budgetary) discretion, but here are some quick and easy tips to abide by. Basics like designer outerwear and shoes are always great investment pieces — quality really shows here — and so are bags. Also, resist the temptation of buying something just because it's on sale. Read our quick tips below, then shop our 14 designer sale picks that really are worth your money. Repeat after us: there's nothing worse than buyer's remorse. Do invest in that designer piece you've had your eye on this season, but make sure it's something you know you'll love forever, like a gorgeous Winter coat, boots, or a stunning piece of jewelry. Don't waste your money on a trendy item you'll only wear for one season, i.e. colorful fur jackets, printed jeans, or crazy colors. Do invest in a pair of amazing footwear. Instead of buying 20 pairs of cheaply made shoes, invest in a pair of amazing designer heels. These beauties stand the test of time and are made with the utmost quality and care. Don't buy that designer sale piece just for the label's sake. Designer sale items are still pricey, and there's nothing worse than buyer's remorse. Do experiment. The best part about buying designer is wearing an item no one else has. So take that risk and buy that statement piece — as long as it looks good on you, you can't go wrong. Don't buy the wrong size. Quantity and sizes are limited with designer sale pieces, and while it's tempting to nab that last pair of Rag & Bone boots in size 9 when you're really a size 7 1/2, just don't do it. Shop Brands Diane von Furstenberg · Proenza Schouler · Derek Lam · Michael Angel · Alexander Wang · Stella McCartney · Maison Martin Margiela · Vanessa Bruno · Eddie Borgo · 3.1 Phillip Lim Coats are the ultimate designer investment piece, and this Diane von Furstenberg Sabrina Belted Wool and Cashmere-Blend Coat ($487, originally $695) is guaranteed to last you a lifetime. We adore the pretty raspberry hue. Diane von Furstenberg Sabrina belted wool and cashmere-blend coat $695 from NET-A-PORTER.COM Buy Now See more Diane von Furstenberg Coats These simple yet chic Tibi Barbara Heels ($285, originally $475) would be the perfect addition to your shoe closet. Classic, chic, and they will never go out of style. 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This Vanessa Bruno Blazer ($425, originally $607) features clean lines and a classic shape that can seamlessly take you from the office to drinks in one fell swoop. Vanessa Bruno Blazer $607 from La Garçonne Buy Now See more Vanessa Bruno Blazers When it comes to accessories, it's best to invest in statement pieces, like this Eddie Borgo Three-Sided Pyramid Cuff ($245, originally $350). Minimal, yet magnetic. Eddie Borgo Three-Sided Pyramid Cuff, Lavender $350 from Neiman Marcus Buy Now See more Eddie Borgo Bracelets These 3.1 Phillip Lim Delia Chelsea Booties ($345, originally $575) will last you season after season, plus the heel is not too high. 3.1 Phillip Lim Delia Chelsea Booties $575 from shopbop.com Buy Now See more 3.1 Phillip Lim Boots Holiday FashionOnline SalesShopping


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Why do you like or dislike this movie?
Uploaded: 2016-03-13 Rating: % / Votes
Description: Eva is a beautiful eyed MILF. We find her on her bike, and I tried to approach her with some bike talk. It works and I get to take her to the office and between cheap talk I finally understand that she really does have a big horny vein.