对数据后处理雷达的多参数协同相关干扰

基于DRFM转发或者重复转发的干扰信号,虽然在功率上能达到干扰要求,但是产生的虚假目标与真实目标缺乏相关性,数据后处理雷达能根据该特性实现对欺骗干扰信号的检测和抑制。针对数据后处理雷达在抑制非相关干扰信号的优越表现,根据不同特征域干扰信号的相关性要求,提出了在幅度域上具有起伏特性,时频域协同一致,方位上具有相关性的干扰信号模型,以保证对数据后处理雷达干扰的有效性。最后在与非相关干扰信号比较中,验证了该干扰方式的有效性。

Research on Technologies for Multi-parameter Collaborative Coherent Jamming Against Data Post-Processing Radar

Although the interference signal transmitted by DRFM has a high jamming power,the false target generated by DRFM is not related to real target. Data post-processing radar can use this feature to detect and eliminate the deception jamming. For its superior performance in suppressing non-coherent jamming,a coherent jamming signal modal is proposed in this paper which can ensure the effectiveness of the interference signal,according to the different requirements in different feature domains. It has fluctuated amplitude and also is designed to be coherent in time-frequency domain and direction. Finally,compared with the non-coherent jamming,simulation results verify the effectiveness and correctness of the proposed method.