Range-Doppler Sidelobe Suppression for Pulsed Radar Based on Golay Complementary Codes

Abstract

To relieve the interference caused by range-Doppler sidelobes in pulsed\nradars, we propose a new method to construct Doppler resilient complementary\nwaveforms based on Golay codes. We design both the transmit pulse train and the\nreceive pulse weights, so that the similarity between the pulse weights and a\ngiven window function is maximized and the constraints on Doppler null points\nand energy are met. That is summarized as a two-way partitioning problem, and\nthen solved by semidefinite programming and randomization techniques. The novel\nwaveform thus obtained has its range sidelobe outright suppressed in multiple\nand flexibly-adjustable Doppler zones, and performs well in Doppler sidelobe\nsuppression, Doppler resolution and SNR. It shows great promise in detecting\nslightly-moving weak targets with the existence of dense interference.\n