一种矢量阵波束域高分辨估计方法  

A High Resolution Algorithm in Beam Domain Using Vector Array

作　　者：刘友志[1] 潘俊阳[1] 

机构地区：[1]西北工业大学声学工程研究所,陕西西安710072

出　　处：《电声技术》2008年第10期40-42,共3页Audio Engineering

摘　　要：MUSIC方法在模型准确的前提下,对波达方向(DOA)的估计能够到达足够精度,但对相隔比较近的小信噪比信号源,MUSIC方法不能估计其DOA。提出了一种基于矢量传感器均匀线列阵的密集波束域MUSIC(DBMUSIC)方法。计算机仿真表明,在低信噪比的条件下,DBMUSIC法的高分辨估计性能得到明显改善,应用前景良好。Compared with the pressure array, vector array measures the acoustic pressure and three orthogonal components of acoustic particle velocity in a sound field, so that it can make use of more available acoustic information. MUSIC（MUltiple Signal Classification） algorithm can reach enough precision under the premise that the model is proper, but it＇s useless to adjacent with small SNR. A modified music algorithm（DBMUSIC） using vector array is presented and the simulations prove the effectiveness of the new algorithm with small SNR.

关 键 词：声矢量阵 DBMUSIC DOA估计 

分 类 号：TB56[交通运输工程—水声工程]