Waveform-Domain Complementary Signal Sets for Interrupted Sampling Repeater Jamming Suppression
arxiv(2024)
摘要
The interrupted-sampling repeater jamming (ISRJ) is coherent and has the
characteristic of suppression and deception to degrade the radar detection
capabilities. The study focuses on anti-ISRJ techniques in the waveform domain,
primarily capitalizing on waveform design and and anti-jamming signal
processing methods in the waveform domain. By exploring the relationship
between waveform-domain adaptive matched filtering (WD-AMF) output and
waveform-domain signals, we demonstrate that ISRJ can be effectively suppressed
when the transmitted waveform exhibits waveform-domain complementarity. We
introduce a phase-coded (PC) waveform set with waveform-domain complementarity
and propose a method for generating such waveform sets of arbitrary code
lengths. The performance of WD-AMF are further developed due to the designed
waveforms, and simulations affirm the superior adaptive anti-jamming
capabilities of the designed waveforms compared to traditional ones.
Remarkably, this improved performance is achieved without the need for prior
knowledge of ISRJ interference parameters at either the transmitter or receiver
stages.
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