一种新的LFM雷达干扰技术  

A New Jamming Technology Against LFM Radar

作　　者：唐孝国[1] 张剑云[1] 雷磊[1] 黄中瑞[1] 

机构地区：[1]电子工程学院,合肥230037

出　　处：《电子信息对抗技术》2013年第1期36-41,62,共7页Electronic Information Warfare Technology

摘　　要：根据间歇采样转发干扰和正弦加权调频干扰的原理和特点,提出了一种新的对付线性调频雷达的干扰方法—间歇采样正弦加权调频干扰,即干扰机对接收到的雷达照射信号先进行间歇采样处理,再附加正弦频率调制,然后将调频结果放大转发出去。理论分析证明,该方法对于线性调频雷达具有显著的干扰效果,根据调制参数不同可以产生假目标欺骗干扰和覆盖干扰,仿真实验表明了理论分析的正确性和实际应用的可行性。A new method is proposed for jamming the linear frequency modulation （LFM） radar, which is based on the principle and feature of interrupted-sampling repeating jamming and sinusoidal weighted frequency modulation jamming. It is named interrupted-sampling and sinusoidal weighted frequency modulation jamming. The radar signal is received by the jammer, then it is interrupted- sampled and modulated in frequency domain, and then the modulated signal is retransmitted. The false target deceptive jamming or cover jamming could be produced according to the modulating pa- rameters. The validity and efficiency of the new jamming technique is justified by the theoretical analysis and computer simulation.

关 键 词：间歇采样 正弦加权调频 数字射频存储 线性调频信号 脉冲压缩 

分 类 号：TN972.1[电子电信—信号与信息处理]