频率步进连续波雷达双频电磁辐射假目标特征分析  

Characteristics analysis of dual frequency electromagnetic radiation false target for stepped frequency continuous wave radar

作　　者：赵凯[1] 魏光辉 王涛[1] 王雪城 薛文辉 ZHAO Kai;WEI Guanghui;WANG Tao;WANG Xuecheng;XUE Wenhui(Unit 32203 of the PLA,Huayin 714200,China;National Key Laboratory on Electromagnetic Environment E f fects,Shijiazhuang Campus of Army Engineering University,Shijiazhuang 050003,China)

机构地区：[1]中国人民解放军32203部队,陕西华阴714200 [2]陆军工程大学石家庄校区电磁环境效应国家重点实验室,河北石家庄050003

出　　处：《系统工程与电子技术》2023年第5期1315-1322,共8页Systems Engineering and Electronics

摘　　要：在装备复杂电磁环境适应性评估的需求下,为掌握双频电磁辐射对雷达的假目标干扰规律,以频率步进连续波雷达为研究对象,基于理论分析与效应试验,分析了雷达在单频电磁辐射、双频电磁辐射干扰下产生的假目标的波形特征以及出现位置规律。结果表明,单频电磁辐射可使受试雷达产生单个“山丘”状假目标,其出现位置随机;双频电磁辐射在不发生互调干扰的情形下,可使受试雷达产生两个“山丘”状假目标,两者位置随机,但距离差与双频干扰信号的频差有关;二阶互调干扰信号可使受试雷达产生单个“尖峰”状假目标,其位置与互调频差有关。In order to reveal the false target interference laws of dual frequency electromagnetic radiation to radar under the requirement of complex electromagnetic environment adaptability evaluation of equipment,the stepped frequency continuous wave radar is taken as the research object,based on the theoretical analysis and effect test,the waveform characteristics and location laws of false targets generated by radar under the interference of single frequency and dual frequency electromagnetic radiation are analyzed.The results show that,the single frequency electromagnetic radiation can make the tested radar produce a single“hill”false target,and its position is random.The dual frequency electromagnetic radiation can make the tested radar produce two“hill”false targets without intermodulation interference,and the positions of the two targets are random.However,the distance difference is related to the frequency difference of the dual frequency interference signal.The second order intermodulation interference signal can make the tested radar produce a single“spike”false target,whose position is related to the intermodulation frequency difference.

关 键 词：频率步进连续波雷达 假目标干扰 双频电磁辐射 二阶互调 

分 类 号：TN972[电子电信—信号与信息处理] TN95[电子电信—信息与通信工程]