一种基于盲源分离的雷达抗同频干扰方法研究  

Research on a Radar Anti-co-frequency Interference Method Based on Blind Source Separation

作　　者：朱生睿 魏芳 ZHU Shengrui;WEI Fang(The 723^(rd)Research Institute of China State Shipbuilding Corporation,Yangzhou Jiangsu 225001)

机构地区：[1]中国船舶集团公司第七二三研究所,江苏扬州225001

出　　处：《软件》2021年第10期54-56,92,共4页Software

摘　　要：本文重点研究一种弱化先验条件,在近似盲信号的模型中,通过一种串行分离的方法,将同频信号逐个分离,达到对目标回波信号的检测,从而实现将接收信号中同频干扰的抑制。通过这种盲信号的模型抑制同频干扰,可以将重叠的同频信号进行分离,并且仅仅通过算法的改变,就能实现干扰抑制,对于改进现有装备雷达适用性强,降低新研成本和周期。再结合传统多周期脉冲相关的方法,可以大大提高干扰抑制能力,并且对非编队内的其他同频干扰类型也有一定的作用。This paper focuses on a weakening a priori condition.In the model of approximate blind signal,the same frequency signals are separated one by one through a serial separation method to detect the target echo signal,so as to suppress the same frequency interference in the received signal.Through this blind signal model to suppress the same frequency interference,the overlapping same frequency signals can be separated,and the interference suppression can be realized only by changing the algorithm.It has strong applicability for improving the existing radar equipment and reducing the cost and cycle of new research.Combined with the traditional multi period pulse correlation method,the interference suppression ability can be greatly improved,and it also plays a certain role in other co frequency interference types in non formation.

关 键 词：同频干扰 相位编码 匹配滤波 盲信号分离 

分 类 号：TN95[电子电信—信号与信息处理]