阵列信号处理中MUSIC算法估计DOA,MUSIC算法是一种基于矩阵特征空间分解的方法。从几何角度讲，信号处理的观测空间可以分解为信号子空间和噪声子空间，显然这两个空间是正交的。-Array signal processing MUSIC algorithm for DOA estimation,MUSIC algorithm is a method of feature space based on matrix decomposition. From the geometric point