对ESM系统中超外差数字接收机的干扰方法研究  

Research on Interference Method for Superheterodyne Digital Receiver in ESMSystem

作　　者：刘康 潘谊春[1] 唐志凯[1] 韩俊[1] LIU Kang;PAN Yi-chun;TANG Zhi-kai;HAN Jun(Air Force Early Warning Academy,Wuhan 430019,China)

机构地区：[1]空军预警学院,武汉430019

出　　处：《火力与指挥控制》2020年第11期54-59,共6页Fire Control & Command Control

基　　金：军内科研基金资助项目(KJ2016C2034)。

摘　　要：为提高我方雷达在敌方干扰机实施干扰下的生存能力,分析了ESM系统中超外差数字接收机的测频原理,在此基础上结合我方不同体制的雷达信号,针对敌方接收机设计了不同的干扰波形,并结合干扰方程分析了干扰效果评估因子。通过仿真验证及效果评估可得,干扰信号在频域上对雷达信号进行了展宽,有效降低了敌方干扰机后续的干扰效果,达到了提高我方雷达生存性能的目的。In order to improve the survivability of our radar in the interference of enemy jammers,the frequency measurement principle of superheterodyne digital receiver in ESM system is analyzed.Based on this,combined with the radar signals of our different systems,the different interference waveforms for the enemy receiver are designed.And the interference effect evaluation factors were analyzed in combination with the interference equation.Through simulation verification and effect evaluation,the interference signal is broadening the radow signal in the frequency domain,which effectively reduces the interference effect of the subsequent enemy jammer and achieves the purpose of improving the survival performance of our radars.

关 键 词：电子支援侦察系统 数字接收机 反侦察 压制干扰 

分 类 号：TN973[电子电信—信号与信息处理]