基于高分辨子空间的任意阵接收2D DOA快速检测算法

Arbitrary array Receiving Signal 2D-DOA Fast Detection Algorithm Based on High Resolution Subspace

本文以空间任意分布的传感器阵列为例,提出一种有效的二维波达方向(Two-Dimensional Direction of Arrival,2D DOA)检测算法。在分析MUSIC算法原理以及谱峰分布特征的基础上,通过步长设置,由局部逐步逼近全局最优,成功进行2D DOA检测,避免了穷尽搜索。仿真结果表明,在信噪比、快拍数、阵元个数变化下本文算法具有很高的检测效率。

In this paper, we present an effective algorithm for 2-D direction of arrival detection based on arbitrary sensor array. Based on the analysis of the principle of MUSIC algorithm and the distribution characteristics of the spectral peak, by setting the step size, from local to global optimum, and the 2D DOA is successfully detected. The simulation results show that the algorithm has high efficiency with the change of SNR and snapshot number, the number of array element.