Modern radar systems are employing waveforms and antenna systems that are increasingly difficult to intercept, but what exactly is Low Probability of Intercept (LPI) radar? Why is it important? And how can these systems be detected and attacked? This presentation attempts to answer these question with a focus on real world problems.
LPI radar systems aim to reduce the probability an EW receiver can detect a threat signal in two manners. First, by carefully managing when and where power is transmitted through its radiation and scan patterns. Second, the radar waveform aims to reduce the average power density by using high duty cycles or continuous wave signals with advanced modulation techniques that cover wide bandwidths.
These techniques can drastically reduce or even eliminate the detection range advantage of an EW receiver over a threat radar. As a result, EW detection technology must advance to keep pace with these new threats. Several methods for detecting and analyzing LPI radar signals will be discussed, and how these can be used to generate countermeasures.
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