计算机工程与应用2015，Vol.51Issue(24)：266-270,5.DOI:10.3778/j.issn.1002-8331.1409-0111
针对头佩式麦克风阵列的声源定位算法研究
Research of sound source localization algorithm for head-worn microphone array
摘要
Abstract
Head-worn microphone array has practical applications in man-portable anti-sniper detection positioning sys-tems and robotic acoustic localization system. Usually, the sound source localization method is based on a linear or nonlin-ear unblocked microphone array. In this paper, considering the diffraction effect of low frequency for back microphones due to the helmet blocking, it uses a head-worn microphone array to design and research the sound source localization al-gorithm for the sound signal in low frequency band. This method uses the diffraction path of low-frequency acoustic waves to calculate the time delay, and utilizes the Steered Response Power and the Phase Transform(SRP-PHAT)frame-work for time delay compensation search positioning. Experimental results show that compared to the common unblocked localization algorithm, the method for a head-worn microphone array based on the diffraction path uses the data of micro-phones back to source. Obviously, it improves the accuracy of localization. Besides, the improvement achieves the best re-sult within 1 kHz frequency band.关键词
头佩式麦克风阵列/绕射路径/联合可控功率响应框架(SRP-PHAT)/声源定位Key words
head-worn microphone array/diffraction path/Steered Response Power and the Phase Transform(SRP-PHAT)/sound localization分类
信息技术与安全科学引用本文复制引用
张奕,孟书杰..针对头佩式麦克风阵列的声源定位算法研究[J].计算机工程与应用,2015,51(24):266-270,5.基金项目
国家自然科学基金(No.61201420). （No.61201420）
