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电子学报  2014 

对逆合成孔径雷达的乘积调制干扰方法

DOI: 10.3969/j.issn.0372-2112.2014.12.024, PP. 2501-2508

Keywords: 乘积调制干扰,线性调频信号,逆合成孔径雷达,尺度缩放

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Abstract:

基于乘积调制干扰理论,提出了一种新型逆合成孔径雷达欺骗干扰方法:对干扰模板图像作二维FFT(FastFourierTransform)变换从而离线快速生成干扰信号,再经过信号相乘调制到截获雷达信号上后转发,可在ISAR(InverseSyntheticApertureRadar)上形成虚假目标且假目标尺度可灵活缩放.在介绍乘积调制干扰的基本原理后,从理论上分析了ISAR假目标生成方法.在此基础上,研究了关键干扰参数对干扰效果的影响,给出了影响尺度缩放功能的关键因素和对侦察的依赖程度,最后进行了仿真验证,结果证明了该方法的可行性和有效性.

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