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基于逆协方差矩阵估计的杂波抑制方法 被引量：1

Clutter suppression method based on estimation of inverse covariance matrixes
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摘要 分析了机载双基地雷达杂波分布的特点,并基于杂波逆协方差矩阵的特性提出了基于逆协方差矩阵估计的机载双基地雷达杂波抑制方法。首先利用常规方法估计得到邻近距离门的协方差矩阵;然后利用邻近距离门的逆协方差矩阵对待检测距离门的逆协方差矩阵进行估计;最后通过传统的空时自适应处理方法完成对杂波的有效抑制。仿真结果表明该方法可明显改善机载双基地雷达的杂波抑制性能。 The characteristics of clutter nonhomogeneity are analyzed for airborne bistatic radar,and a novel clutter suppression method,i.e.the estimation of the inverse covariance matrix（EICM）,is proposed based on the characteristics of clutter inverse covariance matrixes.The clutter covariance matrix of neighboring ranges is gained by using conventional methods firstly,then the inverse covariance matrix of the test range gate is estimated based on the inverse covariance matrix of neighboring ranges.Finally,clutter suppression is completed effectively via the conventional space-time adaptive processing method.The simulation results show that performance of clutter suppression for airborne bistatic radar can be improved greatly using the proposed method.
作者 张柏华 张永顺 王永良 谢文冲
机构地区 空军工程大学导弹学院 空军雷达学院重点实验室
出处 《系统工程与电子技术》 EI CSCD 北大核心 2011年第5期1027-1031,共5页 Systems Engineering and Electronics
基金 国家自然科学基金重点项目(60736009)资助课题
关键词 机载双基地雷达 逆协方差矩阵估计 空时自适应处理 airborne bistatic radar estimation of inverse covariance matrix space-time adaptive processing
分类号 TN957.51 [电子电信—信号与信息处理]
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参考文献10

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同被引文献15

  • 1Cao Jianshu Wang Xuegang.Diagonally loaded SMI algorithm based on inverse matrix recursion[J].Journal of Systems Engineering and Electronics,2007,18(1):160-163. 被引量：7
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  • 3Yang Z C, Li X,Wang H Q, et al. Adaptive clutter suppressionbased on iterative adaptive approach for airborne radar[J]. Sig-nal Processing . 2013,93 : 3567 - 3577.
  • 4Fan H Y, Jiang Y M,Kuang G Y. Target detection in non-sta-tionary clutter background and Riemannian geometry[J], IETRadar,Sonar and Navigation , 2014,8(4) : 376 - 381.
  • 5Zhuang J, Manikas A. Interference cancellation beamformingrobust to pointing errors[J]. IET Signal Processing , 2013,7(2): 120 - 127.
  • 6Yang X P, Liu Y X,Long T. Robust non-homogeneity detec-tion algorithm based on prolate spheroidal wave functions forspace-time adaptive processing[J]. IET Radar, S<mar and Naviga-tion ,2013 .7 (,1) :47 - 54.
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  • 9周宇,张林让,刘楠,刘昕.空时自适应处理中基于知识的训练样本选择策略[J].系统工程与电子技术,2010,32(2):405-409. 被引量：13
  • 10向聪,冯大政,曹杨,吕晖.机载雷达三维空时降维自适应处理[J].系统工程与电子技术,2011,33(3):548-551. 被引量：7

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系统工程与电子技术
2011年 第5期

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