极化雷达导引头干扰技术研究  

Jamming technology for polarmetric radar seeker

作　　者：顾天一 唐莽[1] 陈飞[1] 王卫 梁斌[1] 徐大钊 Gu Tianyi;Tang Mang;Chen Fei;Wang Wei;Liang Bin;Xu Dazhao(No.8511 Research Institute of CASIC,Nanjing 210007,Jiangsu,China)

机构地区：[1]中国航天科工集团8511研究所,江苏南京210007

出　　处：《航天电子对抗》2022年第2期10-14,共5页Aerospace Electronic Warfare

摘　　要：雷达导引头在进行极化改造后,可以利用极化信息进一步进行目标识别与干扰滤除,抗干扰能力显著提高。以极化雷达导引头为研究对象,通过分析常见固定极化干扰、随机极化干扰的作用机理和优缺点,提出了目标模拟随机极化干扰的方式,通过在干扰信号上调制目标的极化散射矩阵,对目标回波信号的极化特征进行了模拟,使得极化雷达导引头无法通过极化特征鉴别干扰和目标。经仿真分析,相比随机极化干扰,该方式的干扰效果得以提升。分析了自适应极化干扰的作用原理,形成了系统组成框图,并对其优缺点进行了研究,是未来极化干扰技术的重点研究方向。After the polarization modification,the radar seeker can use the polarization information to identify the target and remove the jamming,and the anti-jamming ability is improved significantly.Polarimet⁃ric radar seeker is taken as the research object.Through the analysis of action mechanism and both advantages and disadvantages of common fixed polarized jamming and random polarized jamming,a new target simula⁃tion random polarized jamming is proposed.By modulating the polarization scattering matrix of the target on the jamming signal,the polarization characteristics of the target echo signal are simulated,so that the polari⁃metric radar seeker cannot identify the jamming and the target through the polarization characteristics.Simula⁃tion analysis shows that the jamming effect is improved compared with random polarized jamming.The princi⁃ple of adaptive polarized jamming is analyzed and the block diagram of the system is formed,and its advantag⁃es and disadvantages are studied,which is the key research direction of polarized jamming technology in the future.

关 键 词：极化散射矩阵 极化雷达导引头 目标模拟随机极化干扰 自适应极化干扰 

分 类 号：TN972[电子电信—信号与信息处理] TN974[电子电信—信息与通信工程]