A Deception Jamming Method Countering Bi- and Multistatic ISAR Based on Micro-Doppler Effect

作者:Tang, Zheng-Zhao; Dong, Yang-Yang*; Dong, Chun-Xi; Chang, Xin; Zhao, Guo-Qing
来源:Mathematical Problems in Engineering, 2018, 2018: 3689382.
DOI:10.1155/2018/3689382

摘要

Bi- and multistatic inverse synthetic aperture radar (ISAR) operate with spatially separated transmitting and receiving antennas. A deception jamming method countering bi- and multistatic ISAR is proposed in this paper based on the study of micro-Doppler effect. The jammer modulates the intercepted ISAR signals with added micro-Doppler information and retransmits them to the real target, which scatters the jamming signals to the radar receivers. Deceptive false-target images with interference bands in the cross-range direction will be induced by the jamming signals through the imaging process of radar receivers. Additionally, real-time movement features of the false-targets can be flexibly adjusted by changing the modulation parameters, which improves the fidelity of the false-targets. The equivalent number of looks (ENL) index is used to evaluate the jamming effects. Simulation results validate our theoretical analysis and show the effectiveness and practicability of our method.

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