分布式MIMO雷达欺骗干扰抑制算法研究  

Research of algorithm against deceptive interference based on distributed MIMO radar

作　　者：干鹏 周生龙 李贵显 侯庆禹[1] 陈卓[1] 谭清莉 Gan Peng;Zhou Shenglong;Li Guixian;Hou Qingyu;Chen Zhuo;Tan Qingli(No. 8511 Research Institute of CASIC,Nanjing 210007,Jiangsu,China;The 307 Military Representative Office of Rocket Force,Nanjing 210007,Jiangsu,China;School of Information and Communication Engineering,UESTC,Chengdu 611731,Sichuan,China)

机构地区：[1]中国航天科工集团8511研究所,江苏南京210007 [2]火箭军驻307厂军代室,江苏南京210007 [3]电子科技大学信息与通信工程学院,四川成都611731

出　　处：《航天电子对抗》2019年第2期25-32,共8页Aerospace Electronic Warfare

摘　　要：从信号级协同对抗欺骗干扰出发,直接利用各节点雷达回波信号的复包络信息,建立相关检测融合算法实现协同抗干扰。首先展开对分布式MIMO雷达信号相参性的研究,并给出了回波信号间的独立性条件。依据目标空间散射特性的差异,提出了一种信号级协同对抗欺骗式假目标的算法。该算法根据真假目标回波相关性的差异,利用多脉冲回波数据得到相关系数估计值并进行相关性检验,实现对目标的有效鉴别。通过仿真验证了算法的有效性,并对算法性能进行仿真分析。Starting from the signal-level cooperative against deceptive interference,the complex envelope information of radar echo signals of each node is directly used to establish a correlation detection fusion algorithm to achieve synergistic anti-jamming. Firstly,the research on the coherence of distributed MIMO radar signals is carried out, and the independence conditions between echo signals are given. According to the difference of space scattering characteristic of target,an algorithm for signal-level cooperative anti-spoofing false target is proposed. According to the difference of echo correlation between true and false targets, the algorithm uses multi-pulse echo data to obtain correlation coefficient estimates for correlation verification to achieve effective identification of targets. The effectiveness of the algorithm is verified by simulation, and the performance of the algorithm is simulated.

关 键 词：信号级协同 分布式MIMO雷达 欺骗干扰 假目标 相关性检验 

分 类 号：TN974[电子电信—信号与信息处理]