In this paper, direction-of-arrival (DOA) estimation in the presence of non-uniform noise is investigated. To achieve high estimation accuracy, the DOA estimation problem is solved with the use of a matrix completion approach. The matrix completion via alternating projection algorithm (APA) is firstly utilized to find the noise-free covariance matrix of the signal, which is then used to find the DOA by utilizing the conventional subspace-based method. Numerical simulations are performed to verify the accuracy and effectiveness of the proposed approach.

中文翻译：

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使用交替投影矩阵补全的非均匀噪声中的 DOA 估计


在本文中，研究了存在非均匀噪声时的到达方向（DOA）估计。为了获得较高的估计精度，使用矩阵补全方法来解决 DOA 估计问题。首先利用交替投影算法（APA）的矩阵补全来找到信号的无噪声协方差矩阵，然后利用传统的基于子空间的方法来找到DOA。进行数值模拟以验证所提出方法的准确性和有效性。