A subspace fitting algorithm of acoustic vector sensor array and corresponding matrix pre-filter design

作     者：WANG Yan WU Wenfeng FAN Zhan LIANG Guolong 

作者机构：Science and Technology on Underwater Acoustic LaboratoryHarbin Engineering University 

出 版 物：《Chinese Journal of Acoustics》 (声学学报（英文版）)

年 卷 期：2014年第33卷第3期

页      面：267-278页

学科分类：080902[工学-电路与系统] 0809[工学-电子科学与技术（可授工学、理学学位）] 08[工学] 

基　　金：supported by the National Natural Science Foundation of China(61201411) 

主　　题：MUSIC A subspace fitting algorithm of acoustic vector sensor array and corresponding matrix pre-filter design 

摘      要：In order to ease the pass-band response distortion of the matrix pre-filter,a simple approach for designing matrix spatial filter is proposed,which minimizes the sum of the k maximal distortion norm（k is the number of the constraint points）within the pass-band,while constraining the filter response within the *** the costly amount of calculation of the high-resolution methods,an algorithm with small amount of calculation based on matrix pre-filtering and subspace fitting using acoustic vector array（MF-VSSF）is *** joint processing of signal subspace of both pressure and particle velocity,the pre-filtering matrix and the signal subspace is decreased to M-dimensional（M is the number of array-element）,hence reduces the time-consumption of the matrix pre-filter design and DOA *** results show that,the method offers the same performance as MUSIC with pre-filtering,but has much lesser amount of ***,the designed prefilter can efficiently suppress the interference in the stop-band and improve the estimation and resolution performance of successive DOA estimators.