线性调频脉冲压缩雷达干扰调制技术研究  

Research on Jamming Modulation Technology of LFM Pulse Compression Radar

作　　者：杨会军 程啟华 蒋姝 YANG Huijun;CHENG Qihua;JIANG Shu(School of Information and Communication Engineering,Nanjing Institute of Engineering,Nanjing 211167,China;Industrial Center,Nanjing Institute of Engineering,Nanjing 211167,China)

机构地区：[1]南京工程学院信息与通信工程学院,南京211167 [2]南京工程学院工业中心,南京211167

出　　处：《火力与指挥控制》2022年第12期35-38,47,共5页Fire Control & Command Control

基　　金：国家自然科学基金(62001214);南京工程学院引进人才科研启动基金资助项目(YKJ201972)。

摘　　要：根据脉冲压缩雷达的时频耦合特性,提出了一种对抗线性调频脉冲压缩雷达的干扰技术。该技术可根据雷达工作模式产生不同的干扰信号。当雷达工作在搜索模式,采用同步密集假目标干扰样式,在时域、频域、调制域和功率域上对雷达信号样本进行干扰复合调制;当雷达工作在跟踪模式,采用相干移频转发干扰样式,根据雷达信号参数产生步进频移控制量,实现距离拖引干扰。仿真结果表明:干扰调制信号和雷达信号相干,功率利用率高,具有较好的干扰效果。According to the time-frequency coupling characteristics of pulse compression radar,a jamming technique against LFM pulse compression radar is proposed.The technology can generate different jamming signals according to the radar working mode.When the radar is working in search mode,the synchronous dense false target jamming style is adopted to carry out the jamming compound modulation of the radar signal samples in time domain,frequency domain,modulation domain and power domain.When the radar is working in tracking mode,the coherent shift-frequency forwarding jamming style is adopted,and the step shift-frequency control quantity is generated according to the radar signal parameters to realize the range towing jamming.The simulation results show that the jamming modulation signal is coherent with the radar signal and the power utilization is high,and the jamming effect is better.

关 键 词：干扰调制 同步密集假目标 相干移频转发干扰 线性调频 

分 类 号：TN974[电子电信—信号与信息处理]