一种基于DRFM的针对LFM雷达的自适应复合干扰技术  

An Adaptive Composite Jamming Technology to LFM Radar Based on DRFM

作　　者：徐磊[1] 俞成龙[1] 陈旭[1] XU lei;YU Cheng-long;CHEN Xu(The 723 Institute of CSIC,Yangzhou 225101,China)

机构地区：[1]中国船舶重工集团公司第七二三研究所,江苏扬州225101

出　　处：《舰船电子对抗》2021年第2期18-22,60,共6页Shipboard Electronic Countermeasure

摘　　要：数字射频存储器(DRFM)不断发展成熟,越来越多地应用于线性调频(LFM)脉冲压缩雷达干扰中。常规压制干扰在全距离段对雷达进行压制,功率利用率较低,常规移频欺骗干扰容易被雷达识别,并且压制和欺骗干扰往往分时实施。针对LFM脉冲压缩雷达,提出了一种基于DRFM的自适应压制欺骗复合干扰方法,以掩护目标为目的形成可设宽度的条带式压制干扰,以距掩护目标指定位置为起始形成距离拖曳式自适应欺骗干扰,且压制和欺骗干扰可同时实现。最终基于Matlab仿真平台的大量仿真实验和性能分析证明了该干扰对LFM脉冲压缩雷达有效。Digital radio frequency memory(DRFM)has been continuously developed and matured,and is increasingly used in linear frequency modulation(LFM)pulse compression radar jamming.Conventional blanket jamming suppresses radar at full range with low power utilization,and conventional frequency shift deception jamming is easily recognized by radar.Suppression and deception are often implemented in a time-sharing manner.For the LFM pulse compression radar,an adaptive suppression deception composite jamming method based on DRFM is presented in this paper,which forms a strip blanket jamming with adjustable width for the purpose of target shielding,and forms a range drag-and-drop adaptive deception jamming taking the designated position to the shielded target as starting.The suppression and deception jamming can be implemented simultaneously.Finally,a large number of simulation experiments and performance analysis based on Matlab simulation platform prove the feasibility and effectiveness of jamming to the LFM pulse compression radar.

关 键 词：数字射频存储器 移频干扰 条带式压制干扰 自适应欺骗干扰 

分 类 号：TN972[电子电信—信号与信息处理]