针对频率步进雷达的一种灵巧噪声干扰方法  

A Method of Smart Noise Jamming Against Stepped-Frequency Radar

作　　者：张智[1] 赵健[1] 李帅[1] 

机构地区：[1]电子工程学院,合肥230037

出　　处：《舰船电子对抗》2010年第2期5-8,共4页Shipboard Electronic Countermeasure

基　　金：安徽省电子制约技术重点实验室基金;基金编号:2007B002005E

摘　　要：根据频率步进雷达信号处理的特点,提出一种灵巧噪声干扰方式,即将干扰机接收并储存的雷达发射信号与视频噪声相卷积,经放大后转发,以获得匹配处理增益。分析了频率步进雷达信号的时频特性,阐述了灵巧式噪声干扰的机理,进行了干扰效能分析。理论和仿真结果表明,该灵巧噪声干扰能够有效干扰步进雷达信号,具有很高的干扰功率的利用率。According to the characteristics of the stepped-frequency radar signal processing,this paper proposes a method of smart noise jamming,that is to say,after received by the jammer,the radar signal is convoluted with the expected video frequency noise signal,then the result is magnified and retransmitted to fetch the gain of matching processing.The time-frequency characteristic of stepped-frequency signals is analyzed,the mechanism of smart noise jamming is expounded and the jamming efficiency is analyzed.The theory and simulation result show that the smart noise jamming can jam stepped-frequency radar signals availably and has the higher utility of the jamming power.

关 键 词：频率步进信号 脉冲压缩 卷积 灵巧噪声干扰 

分 类 号：TN972[电子电信—信号与信息处理]