title: How can I measure the distance between a raspberry pi and a moving/mobile beacon? Reducing noise in RSSI
body: <p>I would like to know the distance between a raspberry pi and a moving/mobile beacon.</p>
  
  <p>Has anyone implemented a kalman filter (preferably python) or determined a better algorithm for improving distance estimates, based on Radio Signal Strength measurements in a wireless Network environment?</p>
  
  <p>The algorithm would have to be recursive to work in an online environment.  </p>