关浩亮¹,
张顺生^2,,,
王文钦¹
1.电子科技大学信息与通信工程学院 成都 611731
2.电子科技大学电子科学技术研究院 成都 611731
基金项目:国家部委基金

详细信息

作者简介:关浩亮，男，河北石家庄人。现为电子科技大学在读博士研究生，主要研究方向为阵列信号处理
张顺生，男，四川成都人。研究员，博士生导师，主要研究方向为雷达信号处理
王文钦，男，四川成都人。教授，博士生导师，主要研究方向为阵列处理及其在雷达、通信和电子对抗中的应用研究

通讯作者:张顺生 zhangss@uestc.edu.cn

责任主编：朱圣棋 Corresponding Editor: ZHU Shengqi
中图分类号:TN958

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被引次数:0

出版历程

收稿日期:2021-07-01
修回日期:2021-08-21
网络出版日期:2021-09-08
刊出日期:2021-12-28

Passive Localization Countermeasure Based on Frequency Diverse Array

GUAN Haoliang¹,
ZHANG Shunsheng^2,,,
WANG Wenqin¹
1. School of Information and Communication Engineering, University of Science and Technology of China, Chengdu 611731, China
2. Research Institute of Electronic Science and Technology, University of Science and Technology of China, Chengdu 611731, China
Funds:The National Ministries Foundation

More Information

Corresponding author:ZHANG Shunsheng, zhangss@uestc.edu.cn

摘要
摘要:无源定位技术是现代电子战领域中重要的组成部分，然而现有的对抗无源定位系统采用的射频隐身、电子干扰等传统方法仍存在着很大的局限性。该文提出将频控阵技术应用到无源定位对抗领域，频控阵独特的波束扫描特性使得主波束在同一方位角度位置处的波束驻留时间缩短，无源定位系统无法长时间截获频控阵信号。另一方面，频控阵信号的时变特性使得无源定位系统接收信号信噪比大大降低，因此能有效地增加无源定位系统的定位误差，降低其定位效能。搭载有频控阵辐射源的电子系统在利用自身辐射信号对外部环境进行感知的同时，又能阻止敌方的无源定位系统对其实施定位侦察。理论分析和仿真验证均证实了频控阵辐射源针对干涉仪测向与时频差定位两种无源定位方法具备优良的对抗性能，该文的仿真实例显示采用频控阵辐射源时其探测精度明显降低，从而为研究同时具备主动探测和无源定位对抗能力的新一代电子系统提供了新的技术思路。
关键词:电子战/
无源定位对抗/
频控阵/
干涉仪测向/
到达频差/
到达时差
Abstract:Passive localization technology is an integral part of electronic warfare. However, most methods for countering passive localization systems, such as radio frequency stealth and electronic interference, have limitations. This paper proposes a new passive localization countermeasure method based on Frequency Diverse Array (FDA). The unique beam scanning property reduces dwell time at a certain azimuth direction, making it difficult for a passive localization system to intercept FDA signals for a long time. In contrast, the time-varying characteristics of the FDA considerably reduce the signal-to-noise ratio of the received signal, increasing the difficulty in accurately detecting the localization information of the radiation source. Thus, using this new technology, the electronic system platform can perceive the external environment through the signals radiated by the FDA antenna while deceiving the enemy’s passive localization system. Both theoretical analysis and numerical results showed that FDA transmitted signal achieved significantly better localization countermeasure performance in direction finding by an interferometer, frequency difference of arrival, and time difference of arrival, which are particularly useful for a new generation of electronic systems with reconnaissance detection and passive localization countermeasures capability.
Key words:Electronic warfare/
Passive localization countermeasure/
Frequency Diverse Array (FDA)/
Direction finding by interferometer/
Frequency Different of Arrival (FDOA)/
Time Different of Arrival (TDOA)



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