with the understanding that McGraw-Hill and its authors are supplying information but are not attempting to render engineering or other professional ser- vices. If such services are required, the assistance of an appro- priate professional should be sought. CONTENTS Preface Preface to First Edition PART 1 INTRODUCTION TO SPREAD-SPECTRUM COMMUNICATIONS Chapter 1 A Spread-Spectrum Overview A Basis for a Jamming Game Energy Allocation Strategies Spread-Spectrum System Configurations and Components Energy Gain Calculations for Typical Systems The Advantages of Spectrum Spreading 1.5.1 Low Probability of Intercept (LPI) 1.5.2 Independent Interference Rejection and Multiple-Access Operation 1.5.3 High-Resolution Time-of-Arrival (TOA) Measurements Design Issues 1.7 References 1.7.1 Books on Communication Theory 1.7.2 Books on Resolution and Ambiguity Functions 1.7.3 Recent Books and Proceedings on Spread-Spectrum Communications 1.7.4 Spread-Spectrum Tutorials and General Interest Papers Chapter 2 The Historical Origins of Spread-Spectrum Communications Emerging Concepts 2.1.1 Radar Innovations 2.1.2 Developments in Communication Theory 2.1.3 Correlator Mechanization 2.1.4 Protected Communications 2.1.5 Remote Control and Missile Guidance Contents Early Spread-Spectrum Systems 2.2.1 2.2.2 A Note on CYTAC 2.2.3 Hush-Up 2.2.4 BLADES 2.2.5 Noise Wheels 2.2.6 The Hartwell Connection 2.2.7 NOMAC 2.2.8 F9C-A/Rake 2.2.9 A Note on PPM 2.2.10 CODORAC 2.2.11 M-Sequence Genesis 2.2.12 AN/ARC-50 Development at Magnavox Branches on the SS Tree 2.3.1 Spread-Spectrum Radar 2.3.2 Other Early Spread-Spectrum Communication Systems 2.3.3 Spread-Spectrum Developments Outside the United States A Viewpoint 2.5 References Chapter 3 Basic Concepts and System Models Design Approach for Anti-Jam Systems Models and Fundamental Parameters Jammer Waveforms 3.3.1 Broadband and Partial-Band Noise Jammers 3.3.2 CW and Multitone Jammers 3.3.3 Pulse Jammer 3.3.4 Arbitrary Jammer Power Distributions 3.3.5 Repeat-Back Jammers Uncoded Direct-Sequence Spread