对线性调频脉压雷达干扰方法的研究  

A Study of the Ways of Jamming by the Linear Frequency Modulation Pulse Compression Radar

作　　者：朱燕[1] 赵国庆[1] 

机构地区：[1]西安电子科技大学电子工程学院,陕西西安710071

出　　处：《电子科技》2004年第4期57-59,62,共4页Electronic Science and Technology

摘　　要：传统的干扰信号通过线性调频雷达脉冲压缩处理后,能量损失严重。针对该问题,讨论了逆匹配滤波干扰,把经雷达匹配滤波处理后需要得到的干扰信号直接调制到DRFM中的雷达发射信号上。由于与雷达回波密切相关,所以经脉压处理后,干扰能量损失不大。通过仿真分析,证实了其脉压前后信干比变化的确较小,而且从图上也很难区分出干扰信号和真正的目标回波信号,从而达到有效干扰的目的。The traditional jamming signal loses much energy after the pulse compression by the linear frequency modulation radar. In view of this problem, this paper discusses the converse matching filter jamming, which is to modulate jamming signals needed to radar emitting signals. Owing to its close relation with radar echo signals, little jamming energy is lost. Simulation analyses show that it is difficult to distinguish jamming signals from real echoes. This method is therefore effective in jamming.

关 键 词：线性调频 脉冲压缩 逆匹配滤波干扰 雷达 干扰 

分 类 号：TN974[电子电信—信号与信息处理]