期刊文献+

一种基于数据矩阵重构的相干信源二维测向新方法 预览 被引量:13

New method for estimating 2-D DOA in the coherent source environment based on data matrix reconstruction
在线阅读 下载PDF
收藏 分享 导出
摘要 传统的二维波达方向估计算法在相干信源背景下性能会急剧下降甚至失效.针对相干信源的二维波达方向估计问题,提出了一种新的波达方向矩阵法——基于数据矩阵重构的波达方向矩阵法(DMR—DOAM).该算法利用阵列接收数据之间的互相关信息,构造两个Toeplitz矩阵形式的等效协方差矩阵,通过对新的波达方向矩阵一次特征值分解,即可实现解相干和二维波达方向估计.该算法保留了原波达方向矩阵法无需二维谱峰搜索与参数配对的优点,且由于构造的等效协方差矩阵只使用了原协方差矩阵的中间列元素,因此计算量小,实现简单.理论分析与数值仿真均验证了算法的有效性. The performance of classical two dimensional (2-D) Direction-Of-Arrival (DOA) estimation algorithms degrade substantially in the presence of coherent environment. A new DOA matrix method-- DOA matrix method based on data matrix reconstruction (DMR-DOAM) is proposed for 2-D DOA estimation in the coherent source environment. The proposed algorithm reconstructs two Toeplitz equivalent covariance matrices by using cross-correlation information among receiving data from arrays. Decorrelation and 2-D DOA estimation can be realized via the eigen-decomposition of the new DOA matrix. The algorithm can retain the advantages of the traditional DOA matrix method, such as automatical parameter alignment and no need of 2-D search spectrum peak. The equivalent covariance matrices only use the middle column of classical covariance matrices, so the calculation amount is reduced, and the algorithm can be realized easily. Furthermore, the paper analyzes the estimation performance and influencing factors of the proposed algorithm. Theoretical analyses and simulation results both show that the proposed algorithm is effective.
作者 王凌 李国林 刘坚强 毛维平 WANG Ling , LI Guolin, LIU Jianqiang , MAO Weiping (1. No. 7 Dept., Naval Aeronautics and Astronautics Univ. , Yantai 264001, China; 2. Institute of Specification and Standard, Navy Academy of Armament, Shanghai 200235, China)
出处 《西安电子科技大学学报》 EI CAS CSCD 北大核心 2013年第2期130-137,共8页 Journal of Xidian University
基金 基金项目:国家自然科学基金资助项目(60902054) 中国博士后科学基金资助项目(201003758,20090460114) “泰山学者”建设工程专项经费资助项目
关键词 阵列信号处理 波达方向 二维DOA估计 相干信号 TOEPLITZ矩阵 解相干 参数估计 array signal processing direction of arrival 2-D DOA estimation coherent signals Toeplitz matrix decorrelation parameter estimation
作者简介 作者简介:王凌(1985-),男,海军航空工程学院博士研究生,E—mail:wanglingl@yeah.net.
  • 相关文献

参考文献16

二级参考文献139

共引文献229

同被引文献165

  • 1韩芳明,张守宏.用改进的MUSIC算法实现相干多径信号分离[J].系统工程与电子技术,2004,26(6):721-723. 被引量:4
  • 2刘志刚,汪晋宽,王福利.虚拟空间平滑算法[J].电子学报,2007,35(9):1762-1765. 被引量:15
  • 3WANG G M,XIN J M,ZHENG N N.Computationally Efficient Subspace-based Method for Two-dimensional Direction Estimation with L-shaped Array[J].IEEE Transactions on Signal Processing,2011,59(7):3197-3212. 被引量:1
  • 4LIU Fulai,WANG Jinkuan,SUN Changyin,et al.Spatial Differencing Method for DOA Estimation under Coexistence of both Uncorrelated and Coherent Signals[J].IEEE Transactions on Antennas & Propagation,2012,60(4):2052-2062. 被引量:1
  • 5ABEIDA H,DELMAS J.MUSIC-like Estimation of Direction of Arrival for Noncircular Sources[J].IEEE Transactions on Signal Processing,2006,54 (7):2678-2690. 被引量:1
  • 6ABEIDA H,DELMAS J.Statistical Performance of MUSIC-Like Algorithms in Resolving Noncircular Sources[J].IEEE Transactions on Signal Processing,2008,56(9):4317-4329. 被引量:1
  • 7GAO Feifei,NALLANATHAN A,WANG Yide.Improved MUSIC Under the Coexistence of Both Circular and Noncircular Sources[J].IEEE Transactions on Signal Processing,2008,56 (7):3033-3038. 被引量:1
  • 8HASSEN S B,BELLILI F,SAMET A,et al.DOA Estimation of Temporally and Spatially Correlated Narrowband Honcircular Sources in Spatially Correlated White Noise[J].IEEE Transactions on Signal Processing,2011,59(9):4108-4121. 被引量:1
  • 9GAN Lu,GU Jian-Feng,WEI Ping.Estimation of2-D DOA for Noncircular Sources Using Simultaneous SVD Technique[J].Antennas and Wireless Propagation Letters,2008,7; 7385-388. 被引量:1
  • 10Ye Zhongfu,Xiang Li,Xu Xu.DOA estimation with circulararray via spatial averaging algorithm[J].IEEE Antennas andWireless Propagation Letters,2007,6( 1 ):74-76. 被引量:1

引证文献13

二级引证文献30

投稿分析

相关作者

内容加载中请稍等...

相关机构

内容加载中请稍等...

相关主题

内容加载中请稍等...

浏览历史

内容加载中请稍等...
;
使用帮助 返回顶部 意见反馈