数据采集与处理2009，Vol.24Issue(6)：792-796,5.
基于广义相位平滑的矢量阵列波达方向估计
Generalized Phase-Smoothing for DOA Estimation By Using Vector-Sensor Array
摘要
Abstract
The problem of the noncircularity exploitation is addressed for the improvement of acoustie vector-array based direction of arrival(DOA)estimation.The generalized phasesmoothing technique(GPS)is proposed to enhance the robustness of the subspace estimate to the perturbations in the array covariance matrix,and to upgrade the multiple signal classification method(MUSIC)for DOA estimation.This smoothing scheme applies to any type of acoustic vector-array with center-symmetric spatial geometry,does riot require coupled subarrays,and decorrelates two coherent signals.Simulation results show that GPS preproeessing can significantly improve the precision of MUSIC based DOA estimation,in particular for difficult scenarios(low signal to noise ratio,short data length).关键词
波达方向估计/非圆信号/声矢量阵列/广义相位平滑Key words
direction of arrival estimation/non-circular signal/vector sensor array/generalizcd phase smoothing分类
信息技术与安全科学引用本文复制引用
董飞,徐友根,刘志文..基于广义相位平滑的矢量阵列波达方向估计[J].数据采集与处理,2009,24(6):792-796,5.基金项目
国家自然科学基金(60602037,60672084)资助项目. （60602037,60672084）
