Synthetic Aperture Radar Image Transform Using Periodic-Coded Phase Modulation

Qihua Wu, Zhiming Xu, Xiaobin Liu, Tiehua Zhao, Yanfeng Wang, Feng Zhao

Abstract: In this letter, a synthetic aperture radar (SAR) image transform method is proposed using the periodic-coded phase modulation. By modulating the intercepted radar signal with the periodic-coded phase pulse, multiple false targets can be formed along the range direction in the radar image. Then, the target of interest (TOI) can get protected by the deception jamming effect. On this basis, the jamming property and parameter design principles are further discussed. Finally, the mini-SAR data experiment indicates that multiple false targets approximately from 15 to 30 dB higher than the low-level background are generated in the SAR image and then demonstrates the validity of the proposed image transform method.