Wideband adaptive sidelobe cancellation based on stretch processing

Wideband radar systems are vulnerable to external wideband interferences, in order to realize high resolution target image tinder the wideband interferences condition, this paper presents an adaptive sidelobe cancellation(SLC) algorithm which use stretch processing. Conventional analog time delay units(TDUs) were superseded by frequency-dependent digital phase weight in the proposed method, which reduces complexity of the system and improves beamforming performance. The wideband adaptive SLC has good restrain ability to wideband jammers, as a result, it conform high resolution target image even under strong interferences.