基于拖曳式干扰机的ISAR微动散射波干扰方法

doi:10.7527/S1000-6893.2018.22007

Abstract

Abstract: Based on study of micro-Doppler effect, a new Inverse Synthetic Aperture Radar (ISAR) scatter-wave jamming method is proposed. The towed jammer and ISAR receiver can be regarded as the transmitter and receiver of bistatic ISAR, respectively. The towed jammer retransmits the intercepted ISAR signal with the modulated micro-motion information to the target, which then scatters the jamming signals to the ISAR receiver to result in scatter-wave jamming. The false-target image is induced near the image of the real target, and interfere bands are generated in the cross-range direction. The simulation results show that ISAR 2D imaging defocusing suppress jamming with micro-motion characteristics can be easily achieved by manipulating modulation parameters as well as transmission parameters. As the towed jammer is closer to the target, the transmitted jamming signal can easily obtain higher power. The jamming signal is coherent with the real target echo, so that ISAR 2D pulse compression processing gain can be obtained, which reduce the cost of jamming.

Key words: Inverse Synthetic Aperture Radar (ISAR), towed jammer, micro-Doppler effect, suppress jamming, scatter-wave jamming

CLC Number:

V243.2

TANG Zhengzhao, DONG Chunxi, CHANG Xin, LIU Mingming, ZHAO Guoqing. ISAR micro-Doppler scatter-wave jamming method based on towed jammer[J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 2018, 39(7): 322007-322007.

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ISAR micro-Doppler scatter-wave jamming method based on towed jammer

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