DOA估计的PM方法及其在对称Toeplitz噪声环境下的应用

Propagator Method of the DOA Estimation and its Application in the Symmetric Toeplitz Noise Fields

传播算子法不需要进行复杂的特征值分解,运算量小,但仅在信噪比较高的情况下才有较好的波达方向估计性能。讨论了当噪声自相关阵为对称Toeplitz矩阵的特定条件下,传播算子法方法的DOA估计性能明显优于MUSIC方法,而且估计性能不受信噪比的影响。

The PM can avoid the complicated eigendecomposition, and has less computation, but this method has better performance of the DOA estimation only in the condition of the high SNR. The propagator method in the symmetric Toeplitz noise fields is discussed, and the propagator method is proved better than the MUSIC method, and it not effected by the SNR.