说明：  基于天线阵列协方差矩阵的特征分解类DOA估计算法中，多重信号分类（MUSIC）算法具有普遍适用性，只要已知天线阵的分布形式，无论直线阵还是圆阵，不管阵元是否等间隔分布，都可以得到高分辨率的估计结果。
(In the DOA estimation algorithm based on eigendecomposition of antenna array covariance matrix, the multi signal classification (Music) algorithm has universal applicability. As long as the distribution form of antenna array is known, whether the linear array or the circular array, whether the array elements are equally spaced or not, the high-resolution estimation results can be obtained.)