SAR雷达二维噪声卷积调制干扰研究

Study on 2D Noise Convolution Modulation Jamming to SAR

根据SAR雷达二维信号处理特点,提出一种新的SAR雷达二维干扰技术——二维噪声卷积调制干扰,即干扰机接收到SAR雷达信号后,用视频噪声信号对接收信号卷积调制后转发。阐述了噪声卷积调制干扰机理,建立了SAR雷达二维噪声卷积调制干扰模型,论证了干扰功率及干信比方面的优势,分析了相关干扰参数对干扰效果的影响。理论分析和仿真实验证明,该方法对SAR雷达具有明显的欺骗与压制干扰效果。

A new method is proposed for jamming the synthetic aperture radar （SAR） , which is based on the feature of the SAR 2D signals processing and is named noise convolution modulation jam- ming. The jammer receives the radar signal and convolves it with the expected video frequency signal. Then the convolution result is retransmitted. The fundamentals and implement of this method are investi- gated. Its superiority in power and relevant parameters are analyzed. Theoretical analysis and computer simulation justify the validity and efficiency of the new jamming technique.