盲源分离联合阻塞矩阵抗雷达主瓣干扰研究

doi:10.3969/j.issn.1009-086x.2018.01.022

现代防御技术 ›› 2018, Vol. 46 ›› Issue (1): 135-140.DOI: 10.3969/j.issn.1009-086x.2018.01.022

盲源分离联合阻塞矩阵抗雷达主瓣干扰研究

张建中^1,2, 文树梁¹, 谭澄¹, 周宝亮¹

1.北京无线电测量研究所,北京 100854;
2.中国航天科工集团有限公司第二研究院,北京 100854

收稿日期:2017-05-12 修回日期:2017-07-18 出版日期:2018-02-28 发布日期:2020-11-25
作者简介:张建中(1985-),男,浙江东阳人。博士生,主要研究方向为雷达电子对抗、波形设计、阵列信号处理。通信地址:100854 北京市142信箱203分箱 E-mail:zhang.jianzhong@163.com

Radar Main-Lobe Jamming Suppression Based on the Method of BSS-BM Union

ZHANG Jian-zhong^1,2, WEN Shu-liang¹, TAN Cheng¹, ZHOU Bao-liang¹

1. Beijing Institute of Radio Measurement,Beijing 100854,China;
2. The Second Research Academy of CASIC,Beijing 100854,China

Received:2017-05-12 Revised:2017-07-18 Online:2018-02-28 Published:2020-11-25

摘要/Abstract

摘要： 针对雷达主瓣干扰传统的抗干扰无法有效对抗的问题,提出一种盲源分离和阻塞矩阵联合抗主瓣干扰算法。利用阻塞矩阵抑制主瓣干扰接收,然后采用矩阵联合对角化特征矢量算法进行盲源分离,进而达到目标检测的目的。仿真实验表明,在不同信噪比条件下,该算法相比盲源分离算法在干扰位于1/2主瓣波束宽度内时,脉压后峰值信噪比改善明显,且对主瓣干扰方向估计的精度要求较低,具有较强的鲁棒性。

关键词: 主瓣干扰, 抗干扰, 盲源分离, 阻塞矩阵, 波束宽度, 峰值信噪比

Abstract: To counter main lobe jamming, an algorithm based on blind source separation (BSS) and blocking matrix (BM) joint processing is proposed. The arrival of main-lobe jamming angel is estimated; the BM is used to prevent main-lobe jamming receiving; the joint approximation diagonalization of eigen matrices (JADE) is used to separate sources. The experiment of simulation indicates that the new algorithm has greater peak SNR than BSS when the jamming locates in 1/2 beam width, and improves the radar detection performance largely. Even there exists a main-lobe interference direction estimation error, the new algorithm still has good anti-interference ability.

Key words: mainlobe jamming, jamming suppression, blind source separation, blocking matrix, beam width, peak signal noise ratio

中图分类号:

TN973

张建中, 文树梁, 谭澄, 周宝亮. 盲源分离联合阻塞矩阵抗雷达主瓣干扰研究[J]. 现代防御技术, 2018, 46(1): 135-140.

ZHANG Jian-zhong, WEN Shu-liang, TAN Cheng, ZHOU Bao-liang. Radar Main-Lobe Jamming Suppression Based on the Method of BSS-BM Union[J]. Modern Defense Technology, 2018, 46(1): 135-140.

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盲源分离联合阻塞矩阵抗雷达主瓣干扰研究

Radar Main-Lobe Jamming Suppression Based on the Method of BSS-BM Union

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