基于类MUSIC的DOA估计算法

DOA Estimation Algorithm Based on MUSIC-like

针对相关信号波达方向(DOA)的估计问题,提出了一种基于最大差值子矩阵的信号DOA估计方法。对利用Toepllitz构造的满秩矩阵进行特征值分解,得到排序后的特征值,并利用特征值的差值实现满秩矩阵筛选,同时结合传统MUSIC算法实现信号DOA估计。理论分析与仿真实验表明,本文所提方法在相关信号DOA估计方面具有更好的分辨力。

Aiming at the problem of direction of arrival （DOA） estimation of correlation signal,this paper puts forward a signal DOA estimation method based on the maximal difference value sub-array, performs eigenvalue decomposition to the full rank matrix constructed by Toepllitz, fetches the eigenvalue after sequencing,and uses the difference value of eigenvalue to realize full rank matrix filtration,as well as realizes signal DOA estimation combining with traditional MUSIC algorithm. The theory analysis and simulation experiment show that the method proposed in this paper has better resolution in DOA estimation of correlation signal.