基于等距线阵的四种DOA估计算法性能分析

摘要

阵列信号处理技术在远场信号DOA的估计方面的研究成为热点.本文就四种经典的DOA估计算法:MUSIC算法、ESPRIT算法、TLS-ESPRIT算法和Toeplitz矩阵重构算法进行对比研究,目的是为工程实现算法的选择提供了一个参考的理论依据.就笔者所知,对这4种算法性能比较分析的公开报道较少.通过MATLAB软件仿真的方法,分析了各算法的优缺点,并总结出各算法适用范围和其理论依据.%The research of array signal processing technology in the estimation of the far field signal DOA has become a hot spot. To provide a reference to the theoretical basis for the engineering implementation algorithm selection, we compare the four classical DOA algorithms in this paper: MUSIC algorithm, ESPRIT algorithm ,TLS-ESPRIT algorithm and Toeplitz matrix reconstruction algorithm. Just as I know, the comparison and analysis of the performance of the four algorithms are rarely publicly reported. Through the MATLAB software methods, we analyzed the advantages and disadvantages of each algorithm, and then summarized the applicable range of each algorithm and its theoretical basis.