›› 2011, Vol. 24 ›› Issue (8): 8-.

• 论文 • 上一篇    下一篇

基于相干信号源的改进MUSIC算法

何伟刚   

  1. (广西工学院 电控系,广西 柳州 545001)
  • 出版日期:2011-08-15 发布日期:2011-08-19
  • 作者简介:何伟刚(1962—),男,硕士,讲师。研究方向:通信与信息系统,数字信号处理等。

An Improved MUSIC Algorithm for Estimating DOA of Coherent Signals Sources

 HE Wei-Gang   

  1. (Department of Electronic Control,Guangxi University of Technology,Liuzhou 545001,China)
  • Online:2011-08-15 Published:2011-08-19

摘要:

提出一种基于相干信号源的改进多重信号分类(IMUSIC)算法,以估计相干信号波达方向(DOA)。相干信号间接收数据特征值分解后,直接利用大特征值对应的信号子空间与信号导向矢量的关系,通过多维来波方向搜索谱峰,实现对来波方向的有效估计。与空间平滑算法相比,IMUSIC算法具有4大优点,仿真结果也验证了IMUSIC算法的有效性。

关键词: 波达方向估计, 相干信号, IMUSIC算法

Abstract:

A new improved MUSIC algorithm for the estimation of the Direction-of Arrival of coherent signals sources is presented.After Eigen-value decomposing the receive data signal of coherence signals,the relationships between the signal subspace and the signal steering vector is used to achieve DOA effective estimation through searching the multidimensional wave peak.Compared with the traditional spatial smoothing algorithm,the IMUSIC has the following advantages.The simulation results show the proposed IMUSIC algorithm is effective.

Key words: DOA;coherent signals;MUSIC

中图分类号: 

  • TN911.7