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中国科学院大学学报 ›› 2013, Vol. 30 ›› Issue (4): 523-527.DOI: 10.7523/j.issn.2095-6134.2013.04.014

• 信息与电子科学 • 上一篇    下一篇

基于时域卷积盲信号分离的雷达干扰抑制算法

温媛媛, 陈豪   

  1. 中国空间技术研究院西安分院空间微波技术重点实验室, 西安 710100
  • 收稿日期:2012-03-05 修回日期:2012-10-23 发布日期:2013-07-15
  • 通讯作者: 温媛媛
  • 基金资助:

    国家重点实验室基金(9140C5305021006)资助 

Algorithm of radar interference suppression based on blind signal separation in the time domain

WEN Yuan-Yuan, CHEN Hao   

  1. Xi'an Division of China Academy of Space Technology, Science and Technology on Space Microwave Taboratory, Xi'an 710100, China
  • Received:2012-03-05 Revised:2012-10-23 Published:2013-07-15

摘要:

把卷积盲分离算法应用于雷达系统抗干扰中,提出一种新的雷达系统干扰抑制算法. 该算法在时域中对四阶累积量进行联合块对角化,以实现雷达信号和干扰信号的盲分离. 计算机仿真结果表明,在无噪及含噪情况下,该算法均可把卷积混合的雷达回波信号及干扰信号分离开来,且有很好的分离性能.

关键词: 雷达干扰抑制, 盲分离, 抗干扰, 卷积混合, 四阶累积量, 联合块对角化

Abstract:

Blind signal separation (BSS) has been used to realize the radar anti-jamming. A new algorithm of radar interference suppression based on convolutive BSS is proposed and the radar performance is improved. Through the joint block diagonalizaton of fourth-order cumulant in the time domain the separation of the radar signals and the jamming is realized. Simulation results show that the new method has better performance of separation.

Key words: radar interference suppression, blind signal separation, anti-jamming, convolutive mixture, fourth-order cumulant, joint block diagonalization

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