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DRFM干扰在OFDM新体制雷达中的研究

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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.
Research on DRFM Jamming in OFDM New System Radar
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 work-ing 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 simu-lated targets are carried out under two conditions:with and without jamming.The results confirm the accuracy of the tar-get 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.

new system radarorthogonal frequency division multiplexing(OFDM)digital radio frequency memory(DRFM)false target

陈朝、王甲、樊常力、钟旭洲

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中国地质大学(武汉)机械与电子信息学院,湖北武汉 430074

新体制雷达 正交频分复用 数字射频存储器 假目标

装备预研教育部联合基金

6141A02022377

2024

雷达科学与技术
中国电子科技集团公司第38研究所 中国电子学会无线电定位技术分会

雷达科学与技术

CSTPCD北大核心
影响因子:0.665
ISSN:1672-2337
年,卷(期):2024.22(3)
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