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基于Toeplitz矩阵的互耦误差下相干信号源DOA估计

窦慧晶, 侍建超, 雷倩, 程军

窦慧晶, 侍建超, 雷倩, 程军. 基于Toeplitz矩阵的互耦误差下相干信号源DOA估计[J]. 北京工业大学学报, 2012, 38(12): 1857-1861.
引用本文: 窦慧晶, 侍建超, 雷倩, 程军. 基于Toeplitz矩阵的互耦误差下相干信号源DOA估计[J]. 北京工业大学学报, 2012, 38(12): 1857-1861.
DOU Hui-jing, SHI Jian-chao, LEI Qian, CHENG Jun. DOA Estimation of Coherent Signals Under Mutual Couple Based on Toeplitz Matrix[J]. Journal of Beijing University of Technology, 2012, 38(12): 1857-1861.
Citation: DOU Hui-jing, SHI Jian-chao, LEI Qian, CHENG Jun. DOA Estimation of Coherent Signals Under Mutual Couple Based on Toeplitz Matrix[J]. Journal of Beijing University of Technology, 2012, 38(12): 1857-1861.

基于Toeplitz矩阵的互耦误差下相干信号源DOA估计

基金项目: 

北京市教委科研计划项目(KM201210005001)

北京工业大学自然科学基金资助项目(00200054K2001).

详细信息
    作者简介:

    窦慧晶(1969—),女,副教授,主要从事阵列信号处理、目标定位方面的研究,E-mail:dhuijing@bjut.edu.cn.

  • 中图分类号: TN911

DOA Estimation of Coherent Signals Under Mutual Couple Based on Toeplitz Matrix

  • 摘要: 在阵列互耦误差存在的前提下,针对多组相干信号源和若干非相干信号源并存的情况,提出了一种对信号源进行准确估计的算法.算法首先估计阵列的互耦参数,并利用此互耦参数对阵列接收数据进行补偿;然后利用Toeplitz矩阵重构法对相干信号进行解相干;最后利用MUSIC算法估计各个信号源的来波方向(direction of arrival,DOA).实验结果表明,算法有效解决了互耦的影响,避免了阵列损失,实现了间距很小信源的准确估计.
    Abstract: This paper describes the method of direction of arrival(DOA) estimation for many groups of coherent and uncorrelated sources under mutual couple based on Toeplitz matrix.The method first estimates the mutual couple parameter of the linear array,and compensates the array date using the mutual couple parameter.Then,the method decoherences the coherent sources by using Toeplitz matrix.Finally,the DOA of each source is estimated by using the MUSIC method.Experimental results show that the algorithm is effective in solving the influence of mutual coupling,avoiding the loss of array,and realizing the accurate estimation of small sources.
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  • 被引次数: 0
出版历程
  • 收稿日期:  2011-10-07
  • 网络出版日期:  2022-12-02

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