西安理工大学学报2017，Vol.33Issue(4)：464-468,5.DOI:10.19322/j.cnki.issn.1006-4710.2017.04.015
基于四元麦克风阵列时延差值的全方位角声源定位方法研究
Study of full range of sound source localization using time-delay value based on four microphones array
摘要
Abstract
As the traditional time-delay estimation algorithm based on generalized cross correlation is sensitive to the noise,the parameter ρ is introduced to reduce the proportion of the interference signal in the cross-power spectrum,with the peak search interval of the cross-correlation function limited to improve the performance of time-delay estimation in the low SNR.The different microphones are selected as the reference through considering the relationships of advance and delay in time between signals.The calculation method of the azimuth angle is further improved to realize the location of sound sources in full azimuth.A sound source localization system based on the LabVIEW is built to verify the validity of the algorithm.The result show that the improved algorithm has a better anti-noise performance and that the estimated deviation of azimuth angle is controlled within 5 degrees,and overall this test of sound source localization achieves a better effect.关键词
麦克风阵列/声源定位/GCC-PHAT-ργ/全方位角Key words
microphone array/sound source localization/GCC-PHAT-ργ/full azimuth分类
信息技术与安全科学引用本文复制引用
王政,刘君,晏克俊,高鹤明..基于四元麦克风阵列时延差值的全方位角声源定位方法研究[J].西安理工大学学报,2017,33(4):464-468,5.基金项目
国家自然科学基金资助项目(51406164) （51406164）
