脉冲多普勒雷达干扰调制技术研究  

Research on Jamming Modulation Technology of Pulse Doppler Radar

作　　者：杨会军 程啟华 蒋姝 王建伟 YANG Huijun∗;CHENG Qihua;JIANG Shu;WANG Jianwei(School of Information and Communication Engineering,Nanjing Institute of Technology,Nanjing Jiangsu 211167,China;Industrial Center,Nanjing Institute of Technology,Nanjing 211167,China;Bureau of Industry and Information Technology,Taizhou Jiangsu 225306,China)

机构地区：[1]南京工程学院信息与通信工程学院,江苏南京211167 [2]南京工程学院工业中心,江苏南京211167 [3]泰州市工业和信息化局,江苏泰州225306

出　　处：《电子器件》2023年第5期1225-1229,共5页Chinese Journal of Electron Devices

基　　金：国家自然科学基金项目(62001214);南京工程学院引进人才科研启动基金项目(YKJ201972,YKJ201973)。

摘　　要：根据脉冲多普勒雷达的重频特征,提出了对抗脉冲多普勒(PD)雷达的宽脉冲覆盖干扰技术、多普勒虚假回波干扰技术。在低重频条件下采用宽脉冲覆盖干扰,在目标上叠加一个具有目标多普勒特征的展宽覆盖脉冲,在雷达恒虚警电路作用下,通过提高检测门限来抑制真实目标。在中高重频条件下采用多普勒虚假回波干扰,调制产生多个欺骗多普勒回波,破坏PD雷达对目标的分辨。仿真结果表明:该干扰技术能适应脉冲多普勒雷达的重频特征,产生预期的干扰信号波形,具有较好的干扰效果。According to the pulse repetition frequency characteristics of pulse Doppler(PD)radar,the wide pulse coverage jamming technology and Doppler false echo jamming technology against PD radar are proposed.Under the condition of low pulse repetition frequency,a wide pulse covering jamming is used.A broadening cover pulse with Doppler characteristics is superimposed on the target,and the real target can be suppressed by increasing the detection threshold under the action of radar CFAR circuit.In the condition of medium and high pulse repetition frequency,Doppler false echo jamming is used to generate multiple deceptive Doppler echoes,which can destroy PD radar’s resolution of the target.The simulation results show that the jamming technology can adapt to the pulse repetition frequency characteristics of PD radar,generate the expected jamming signal waveform,and have a good jamming effect.

关 键 词：干扰调制 宽脉冲覆盖干扰 多普勒虚假回波干扰 脉冲多普勒雷达 

分 类 号：TN974[电子电信—信号与信息处理]