基于WVD-MUISC算法的单矢量水听器DOA估计  

DOA Estimation Using a Single Acoustic Vector-hydrophone Based on WVD-MUSIC Algorithm

作　　者：张炜[1] 程锦房[1] 蒋伟涛 

机构地区：[1]海军工程大学兵器工程系 [2]91388部队水声对抗技术重点实验室

出　　处：《武汉理工大学学报（交通科学与工程版）》2013年第4期801-804,共4页Journal of Wuhan University of Technology（Transportation Science & Engineering）

基　　金：国家部委基金项目资助(批准号:4010709010201)

摘　　要：针对MUSIC算法在非平稳噪声背景下DOA估计性能下降和信源个数受限的问题,利用空间时频分布(spatial time-frequency distribution,STFD),选择时频点构造时频相关矩阵,替代MU-SIC算法中的相关矩阵,设计了单矢量水听器DOA估计的WVD-MUSIC算法,通过仿真验证了新方法在噪声抑制能力、空间分辨能力和多目标分辨能力优于原方法.In order to solve the problems that MUSIC algorithm DOA estimation performance in the background of non-stationary noise is degradation and it detection signal number limited by array element.Spatial Time-Frequency Distribution is used to designe a single vector hydrophone WVD-MUSIC algorithm,which select the time-frequency point to construct time-frequency correlation matrix,instead of the correlation matrix in the MUSIC algorithm.New method in the noise suppression,spatial distinguishing and multi-objective distinguishing capability superior than the original method is verified by simulation.

关 键 词：空间时频分布 时频MUSIC算法 单矢量水听器 多目标分辨 DOA估计 

分 类 号：TB566[交通运输工程—水声工程]