基于多级维纳滤波器的声矢量阵空间谱估计算法  

DOA Estimation of Acoustic Vector Sensor Array Based on Multi-stage Wiener Filter

作　　者：张柯[1] 程菊明[1] 付进[2] 

机构地区：[1]许昌学院信息工程学院,河南许昌461000 [2]哈尔滨工程大学水声工程学院,黑龙江哈尔滨150001

出　　处：《兵工学报》2015年第11期2128-2134,共7页Acta Armamentarii

基　　金：国家自然科学基金项目(51209059;51279043);黑龙江省普通高等学校青年学术骨干支持计划项目(1253G019)

摘　　要：针对传统的声矢量阵高分辨空间谱估计(来波方向估计)算法运算量大、不易于工程实现的问题,提出一种基于多级维纳滤波器(MSWF)的声矢量阵快速来波方向估计算法,即V-MSWF算法,选取声矢量阵参考阵元声压通道的输出作为期望信号,通过MSWF的递推运算得到信号子空间。通过计算机仿真及消声水池实验对V-MSWF算法的性能进行了验证。结果表明,V-MSWF算法无需计算阵列协方差矩阵及特征值分解运算,在高信噪比条件下,具有良好的来波方向估计性能。Traditional high-resolution DOA estimation algorithm for acoustic vector sensor array（ AVSA）is computational intensive and difficult to realize in engineering. To solve this problem,a fast DOA estimation algorithm based on MSWF is proposed,which is also called V-MSWF. V-MSWF algorithm selects an output from sound pressure channel of reference array element of AVSA as its desired signal. The signal subspace can be achieved by MSWF recursively. V-MSWF algorithm does not need to calculate crosscovariance matrix and eigen-decomposition. It has a good performance for DOA estimation at high SNR.Computer simulation and experiment in anechoic water tank show the favorable performance of V-MSWF algorithm.

关 键 词：声学 阵列信号处理 来波方向估计 声矢量阵 多级维纳滤波器 

分 类 号：TN911.7[电子电信—通信与信息系统]