脉冲多普勒雷达抑制主瓣压制干扰算法研究  

On Main-Lobe Suppression Jamming Suppression Algorithms in Pulse Doppler Radar

作　　者：张亮 杜庆磊[1] 王安乐 李鑫 张翔宇 ZHANG Liang;DU Qinglei;WANG Anle;LI Xin;ZHANG Xiangyu(Air Force Early Waming Academy,Wuhan 430000,China;No.94326 Unit of PLA,Ji'nan 250000,China;Naval Aviation University,Yantai 264000,China)

机构地区：[1]空军预警学院,武汉430000 [2]中国人民解放军94326部队,济南250000 [3]海军航空大学,山东烟台264000

出　　处：《电光与控制》2023年第12期31-37,共7页Electronics Optics & Control

基　　金：国家自然科学基金(62271498,61731023)。

摘　　要：针对脉冲多普勒(PD)雷达抗主瓣压制干扰问题,提出两种抑制算法。第一种算法基于波束域盲源分离(BSS)抑制思路,通过对相参积累后的多波束回波进行降维,构造待分离信号,并以瑞利熵为指标识别分离后的源信号。第二种算法基于相关滤波抑制思路,以一个波束回波为匹配信号,对另一个波束回波进行相关滤波,再通过逆操作得到抑制后的波束回波。仿真试验验证了所提两种算法的有效性。To solve the problem of main-lobe suppression jamming suppression in Pulse Doppler(PD)radar,two algorithms are proposed.The first algorithm,which is based on the idea of Blind Source Separation(BSS)in beam space,reduces the dimension of multi-beam echo after coherent integration to construct the signal to be separated,and takes Rényi entropy as the index to identify the separated source signals.The second algorithm,which is based on the idea of correlation filtering,takes one beam echo as the matching signal,performs correlation filtering on the other beam echo,and then obtains a suppressed beam echo through inverse operation.The simulation results verify the effectiveness of the proposed two algorithms.

关 键 词：脉冲多普勒雷达 主瓣压制干扰 干扰抑制 盲源分离 相关滤波 

分 类 号：TN958[电子电信—信号与信息处理]