阵列自由度欠定条件下雷达干扰对消方法及性能分析

doi:10.12305/j.issn.1001-506X.2024.11.06

系统工程与电子技术 ›› 2024, Vol. 46 ›› Issue (11): 3639-3647.doi: 10.12305/j.issn.1001-506X.2024.11.06

阵列自由度欠定条件下雷达干扰对消方法及性能分析

张嘉毫, 李伟, 王万田, 王衡峰, 李亚星, 孟进

海军工程大学军用电气科学与技术研究所电磁能技术全国重点实验室, 湖北武汉 430033

收稿日期:2023-03-23 出版日期:2024-10-28 发布日期:2024-11-30
通讯作者: 孟进
作者简介:张嘉毫(1990—), 男, 副教授, 博士, 主要研究方向为电磁防护、电磁兼容
李伟(1982—), 男, 副研究员, 博士, 主要研究方向为干扰防护
王万田(1992—), 男, 讲师, 博士, 主要研究方向为雷达技术、干扰抑制
王衡峰(1992—), 男, 助理研究员, 博士, 主要研究方向为干扰抑制、天线设计
李亚星(1988—), 男, 助理研究员, 博士, 主要研究方向为干扰防护
孟进(1977—), 男, 教授, 博士, 主要研究方向为电磁兼容、电磁攻防
基金资助:
国家杰出青年科学基金(52025072);中国科协青年人才托举工程(2021-JCJQ-QT-009);国家自然科学基金面上项目(52177012);全国重点实验室基金(6142217210501);全国重点实验室基金(614221720200106)

Radar interference cancellation method and performance analysis under condition of incomplete array degree of freedom

Jiahao ZHANG, Wei LI, Wantian WANG, Hengfeng WANG, Yaxing LI, Ji MENG

National Key Laboratory of Electromagnetic Energy, Institute of Military Electrical Science and Technology, Naval University of Engineering, Wuhan 430033, China

Received:2023-03-23 Online:2024-10-28 Published:2024-11-30
Contact: Ji MENG

摘要/Abstract

摘要：

针对雷达、数据链等分时信息系统发射时隙产生的自干扰影响非合作干扰对消权值问题，分析辅助天线阵列自由度影响对消暂态权值收敛特性，提出非合作干扰对消权值保持方法。考虑辅助天线通道与主天线通道异构场景，定量推导非合作干扰对消输出功率稳态性能边界与影响因素。结果表明，权值保持技术避免发射自干扰影响，增加辅助天线数量提升对消比和对消收敛特性。所提方法提升了阵列自由度欠定条件下非合作对消稳态和暂态性能，对于雷达非合作干扰对消设计具有现实指导意义。

关键词: 非合作干扰, 干扰对消, 雷达抗干扰, 收发分时

Abstract:

For the time-division information systems, such as radar, data-link, etc., the self-interference generated in the transmit time slot affects the weights of non-cooperative interference cancellation. The effects of the degree of freedom of the auxiliary antenna array on the transient convergence performance of the non-cooperative interference cancellation is analyzed. The weight-holding method is proposed for the non-cooperative interference cancellation system. The performance boundary and influence factors of the steady output power of the interference cancellation is derived, in the inhomogeneous main-auxiliary antenna array scenario. The results show that the weight-holding method can avoid the self-interference influence. By increasing the number of the auxiliary antennas, the convergence performance and the interference cancellation performance can be improved. The proposed method enhance both the transient and steady performance of the non-cooperative interference cancellation system on the condition of incomplete antenna array freedom. This paper provides a guidance for the non-cooperative interference cancellation system design for radars.

Key words: non-cooperative interference, interference cancellation, radar anti-jamming, receive/transmit time-division

中图分类号:

TN97

张嘉毫, 李伟, 王万田, 王衡峰, 李亚星, 孟进. 阵列自由度欠定条件下雷达干扰对消方法及性能分析[J]. 系统工程与电子技术, 2024, 46(11): 3639-3647.

Jiahao ZHANG, Wei LI, Wantian WANG, Hengfeng WANG, Yaxing LI, Ji MENG. Radar interference cancellation method and performance analysis under condition of incomplete array degree of freedom[J]. Systems Engineering and Electronics, 2024, 46(11): 3639-3647.

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阵列自由度欠定条件下雷达干扰对消方法及性能分析

Radar interference cancellation method and performance analysis under condition of incomplete array degree of freedom

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