Journal of Systems Engineering and Electronics ›› 2009, Vol. 31 ›› Issue (4): 754-756.

• 电子技术 • 上一篇    下一篇

一种宽带循环平稳信号波达方向估计的快速算法

赵拥军1,2, 尤亚静2   

  1. 1. 北京理工大学信息科学技术学院雷达技术研究所, 北京, 100081;
    2. 信息工程大学信息工程学院, 河南, 郑州, 450002
  • 收稿日期:2007-11-23 修回日期:2008-01-15 出版日期:2009-04-20 发布日期:2010-01-03
  • 作者简介:赵拥军(1963- ),男,教授,博士,主要研究方向为阵列信号处理,雷达信号与信息处理.E-mail:youzi522@126.com

Low complexity algorithm for DOA estimation of wideband cyclostationary signals

ZHAO Yong-jun1,2, YOU Ya-jing2   

  1. 1. Radar Technology Inst., School of Information Science and Technology, Beijing Inst. of Technology, Beijing 100081, China;
    2. Inst. of Information Engineering, Univ. of Information Engineering, Zhengzhou 450002, China
  • Received:2007-11-23 Revised:2008-01-15 Online:2009-04-20 Published:2010-01-03

摘要: 提出了一种宽带信号波达方向估计的快速算法——谱相关多级维纳滤波器(spectral correlation-multi stage Wiener filter,SC-MSWF)算法。由于同时利用信号的循环平稳特性和多级维纳滤波技术,该算法既不需要传统的宽带信号波达方向估计中的聚焦运算,也不需要对伪数据矩阵或其协方差矩阵的特征值分解。从而该算法在具有循环平稳类算法的所有优点的同时,也具有小运算量和低复杂度的特点。仿真结果证明了该算法的有效性。

Abstract: To estimate DOA(Direction of Arrival) of wideband cyclostationary signals,a novel fast algorithm referred to as spectral correlation multi-stage Wiener filter(SC-MSWF) is presented in this paper.In virtue of combining the cyclostationarity theory and multi-stage Wiener filter theory,the presented algorithm does not need the focusing operations,and neither do need the estimation of the cyclic covariance matrix and its eigendecomposition.And thereby when it has all of the advantages of cyclic DOA estimation algorithms,it is computationally efficient.The simulation results demonstrate its effectiveness.

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