基于KM算法的转发式干扰辨识与抑制方法  

Recognition and suppression of forwarded jamming based on K-means algorithm

作　　者：季权[1] 王松[2] 杜思予 陈望杰[1] 刘泳伶[1] Ji Quan;Wang Song;Du Siyu;Chen Wangjie;Liu Yongling(No.8511 Research Institute of CASIC,Nanjing 210007,Jiangsu,China;Unit 32086 of PLA,Nanjing 210018,Jiangsu,China)

机构地区：[1]中国航天科工集团8511研究所,江苏南京210007 [2]中国人民解放军32086部队,江苏南京210018

出　　处：《航天电子对抗》2024年第1期32-35,43,共5页Aerospace Electronic Warfare

摘　　要：转发式干扰是对截获的雷达信号进行调制后发射出去的干扰信号,它在空时频多域与目标回波存在强相关性。当雷达接收端进行信号处理时,此类干扰能够获得匹配滤波增益,形成若干个虚假目标,同时实现欺骗和压制2种干扰效果。联合频率捷变技术,利用聚类思想在脉压域实现干扰辨识与抑制。仿真实验表明,所提方法能够有效抑制干扰,且当干扰功率较大时,依然具有良好的抗干扰效果。Forwarded jamming is the interference signal transmitted after modulating the intercepted radar signal,which has a strong correlation with target echo in space,time and frequency domains.When the radar receiver performs signal processing,this kind of jamming can obtain matching filter gain,form several false targets,and realize both deception and suppression jamming effects.Combined with frequency agile technology,the clustering idea is used to realize interference recognition and suppression in pulse compression domain.Simulation results show that the proposed method can effectively suppress the dense false target jamming,and still has good anti-jamming effect when the jamming power is large.

关 键 词：抗干扰 捷变频雷达 转发式干扰 K均值聚类 

分 类 号：TN974[电子电信—信号与信息处理]