计算机工程与应用2012，Vol.48Issue(5)：149-152,4.DOI:10.3778/j.issn.1002-8331.2012.05.042
基于球麦克风阵列的多声源定位方法
Localization of multiple acoustic sources based on spherical microphone arrays
摘要
Abstract
In this paper sound pressure is sampled through spherical microphone array. Sound field can be decomposed by spherical harmonics and a signal model is built. Based on the model, MUSIC algorithm is adopted to estimate the positions of multiple acoustic sources. However this method fails when the signals are coherent, especially near to each other. Therefore a new petal-blocking method is proposed based on spatial smoothing to improve localization effect. A 72-element spherical microphone array is applied to the simulation. The results show that this method can localize multiple coherent sources and resist noise.关键词
球麦克风阵列/球谐函数/多信号分类(MUSIC)算法/空间平滑Key words
spherical microphone array/ spherical harmonics/ Multiple Signal Classification (MUSIC) algorithm/ spatial smoothing分类
信息技术与安全科学引用本文复制引用
钟强,黄青华..基于球麦克风阵列的多声源定位方法[J].计算机工程与应用,2012,48(5):149-152,4.基金项目
国家自然科学基金(No.61001160) （No.61001160）
教育部博士点基金(No.20093108120018). （No.20093108120018）
