一种雷达主瓣欺骗干扰抑制算法

An Algorithm of Radar Mainlobe Deception Jamming Suppression

针对单通道雷达受到主瓣干扰,提出了一种基于多周期采样的抗主瓣干扰方法。首先针对距离密集假目标欺骗干扰,建立了基于多脉冲重复间隔(paulse repeat interval)采样的抗主瓣欺骗干扰模型并对其可行性进行证明,然后对信号源个数进行估计,最后借助提出的盲源分离方法将干扰信号与目标回波信号分离,达到抗干扰效果。理论分析和仿真表明,该方法具有较好的分离效果及干扰抑制能力。

A suppression method is proposed based on multi-period sampling and BSS algorithm. At first, the model of range dense false target mainlobe jamming suppression based on multi-period sampling is given and proved. Then the number of signal source is estimated. The target echo signal and interfer- ence signal are separated by BSS algorithm, which finally achieves jamming suppression effect. Theoreti- cal analysis and computer simulation demonstrate that the proposed method has a good performance on both the mixture signal separation and the interference suppression.