Enhanced Doppler Resolution and Sidelobe Suppression Performance for Golay Complementary Waveforms
Jiahua Zhu, Yongping Song, Nan Jiang, Zhuang Xie, Chongyi Fan, Xiaotao Huang
Abstract
An enhanced Doppler resolution and sidelobe suppression have long been practical issues for moving target detection using Golay complementary waveforms. In this paper, Golay complementary waveform radar returns are combined with a proposed processor, the pointwise thresholding processor (PTP). Compared to the pointwise minimization processor (PMP) illustrated in a previous work, which could only achieve a Doppler resolution comparable to existing methods, this approach essentially increases the Doppler resolution to a very high level in theory. This study also introduced a further filtering process for the delay-Doppler map of the PTP, and simulations verified that the method results in a delay-Doppler map virtually free of range sidelobes.