基于数据共轭重排的修正二维MUSIC算法分析

A Performance Analysis of the Modified 2-D MUSIC Algorithm Based on Conjugate Data Rearrangement

在阐述二维MUSIC算法基本原理的基础上,通过将接收数据共轭重排的再利用、构造相关矩阵,提出一种基于正交阵列的修正二维MUSIC算法。在快拍次数有限时,此算法可以明显改善信号的波达方向估计性能,特别是相干信号波达方向(DOA)的估计性能,计算机仿真结果证明了该改进算法的有效性和可行性。

On the basis of describing the 2-D MUSIC algorithm and by reusing the conjugate data being rearranged and constructing correlation matrix,a modified 2-D MUSIC algorithm based on three orthogonal linear arrays is proposed in this paper. This modified algorithm can improve the performances of the signal DOA estimation significantly when the snapshot number is limit- ed,especially for the coherent signal.Computer simulation results show that the modified algorithm is effective and workable.