CONTENTS

 1 Introduction  2
        1.1 Summary of findings  2
2 Types of radars in the bands  2
3 Types of potential interference effects  3
4 Interference-mitigating characteristics commonly found in radars  3
        4.1 Isolation in power coupling (antenna-mediated effects) 4
                  4.1.1 Sidelobe-to-sidelobe coupling  4
                  4.1.2 Main-beam-to-sidelobe coupling  6
                  4.1.3 Sidelobe blanking  6
                  4.1.4 Sidelobe-to-main-beam coupling  6
        4.2 Processor-mediated effects  7
                  4.2.1 Individual-pulse processes  7
                  4.2.2 Multiple-pulse integration techniques  8
                  4.2.3 Asynchronous pulse removal and replacement techniques  9
                  4.2.4 Asynchronous pulse rejection requirements and practices  12
        4.3 Nonlinear and time-varying gain effects  13
                  4.3.1 Limiting  13
                  4.3.2 Logarithmic amplifiers  14
                  4.3.3 Sensitivity time control (STC) 14
        4.4 CFAR processing  14
        4.5 Software-mediated effects (post-processing) 15
        4.6 Spectrally-mediated effects  15
5 Conclusions  16