ABSTRACT In order to counteract the main lobe multi-false target jamming of radar, a blind source separation jamming suppression method based on channel ratio function is proposed. The cross-polarised auxiliary antenna is used to expand the receiving channel, and the blind signal processing method is used to separate the jamming from the target echo. This method utilises the statistical characteristics of channel ratio function and chooses the time unit with only jamming to process. And it realises jamming suppression and echo extraction. The simulation results show that the proposed method has good jamming suppression performance and is not affected by channel noise and polarisation purity of auxiliary antenna.

中文翻译：

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一种基于信道比函数的盲源分离干扰抑制方法

摘要 为了对抗雷达主瓣多假目标干扰，提出了一种基于信道比函数的盲源分离干扰抑制方法。采用交叉极化辅助天线扩展接收信道，采用盲信号处理方法将干扰与目标回波分离。该方法利用信道比函数的统计特性，选择只有干扰的时间单位进行处理。并实现了干扰抑制和回声提取。仿真结果表明，该方法具有良好的干扰抑制性能，且不受信道噪声和辅助天线极化纯度的影响。