摘要
新体制雷达以正交频分复用(OFDM)数字调制方式作为雷达信号源,具有高频谱效率、高分辨能力等优点。本文首先介绍了新体制雷达系统的基本组成部分,主要包括OFDM信号源、发射模块、环境模块、接收模块和信号处理模块。其次介绍了数字射频存储器(DRFM)干扰的主要组成部分以及工作原理,其中主要包括假目标干扰。最后将DRFM干扰与新体制雷达结合,在加干扰和不加干扰两种情况下对仿真目标进行测距和测速,结果验证了新体制雷达测量目标的准确性以及DRFM干扰的可行性。对新体制雷达及DRFM干扰研究具有参考意义。
The new system radar uses orthogonal frequency division multiplexing(OFDM)digital modulation as the radar signal source,which has the advantages of high frequency spectral efficiency and high resolution.This article firstly introduces the basic components of the new system radar,mainly including OFDM signal source,transmission module,environment module,receiver module and signal processing module.Secondly,the main components and working principles of digital radio frequency memory(DRFM)interference are introduced,including false target jamming.Finally,the DRFM jamming is combined with the new system radar,and the ranging and speed measurements on simulated targets are carried out under two conditions:with and without jamming.The results confirm the accuracy of the target measurement using the new system radar and show that DRFM jamming is feasible.It has reference significance for the research of new system radar and DRFM interference.
作者
陈朝
王甲
樊常力
钟旭洲
CHEN Zhao;WANG Jia;FAN Changli;ZHONG Xuzhou(School of Mechanical Engineering and Electronic Information,China University of Geosciences,Wuhan 430074,China)
出处
《雷达科学与技术》
北大核心
2024年第3期306-311,320,共7页
Radar Science and Technology
基金
装备预研教育部联合基金(No.6141A02022377)。
关键词
新体制雷达
正交频分复用
数字射频存储器
假目标
new system radar
orthogonal frequency division multiplexing(OFDM)
digital radio frequency memory(DRFM)
false target
