基于Toeplitz重构的相干源DOA估计算法对比分析  

Comparative Analysis of Coherent Source DOA Estimation Algorithms Based on Toeplitz Reconstruction

作　　者：赵佳 李永亮 Zhao Jia;Li Yongliang(Vocational and Technical College of Hebei Normal University,Shijiazhuang City,Hebei Province,050024;32039 PLA troops,Beijing,100094)

机构地区：[1]河北师范大学职业技术学院,河北石家庄050024 [2]32039部队,北京100094

出　　处：《中国仪器仪表》2021年第5期65-69,共5页China Instrumentation

基　　金：河北省教育厅青年基金项目(批准号:QN2020423);河北师范大学基金(批准号:L2020B28)。

摘　　要：本文对基于Toeplitz矩阵重构来实现去相干的方法进行了研究和分类,并阐述了它们算法的基本思想和研究成果,并通过实际信号的例子对不同算法进行了实验对比分析,利用基于这些方法改进MUSIC算法对相干源进行了DOA估计和性能分析。综合实际信号,实验结果表明,基于Toeplitz矩阵重构的方法对相干源DOA估计的有效性,并得出结论:基于阵列接收数据选择相关后再进行重构的方法比基于协方差矩阵进行重构的方法的DOA估计性能要好。In this paper,the methods of decoherence based on Toeplitz matrix reconstruction are classified,and the DOA estimation and performance analysis of coherent sources are carried out by using MUSIC algorithm based on these methods.The simulation results verify the effectiveness of the method based on Toeplitz matrix reconstruction for DOA estimation of coherent sources,and draw a conclusion:the performance of DOA estimation based on the reconstruction of array received data is better than that based on covariance matrix reconstruction.

关 键 词：重构 DOA估计 相干信号源 

分 类 号：TN911.7[电子电信—通信与信息系统]