基于三维星型阵列拓扑的自校准麦克风阵列声源定位系统  

Sound source localization system of self-calibrating microphone array based on three-dimensional star array topology

作　　者：王玫[1,2] 孙昊彬 罗丽燕 宋浠瑜 WANG Mei;SUN Haobin;LUO Liyan;SONG Xiyu(Provincial Ministry of Education Key Laboratory of Cognitive Radio and Signal Processing,Guilin University of Electronic Technology,Guilin 541004,China;College of Information Science and Engineering,Guilin University of Technology,Guilin 541006,China)

机构地区：[1]桂林电子科技大学认知无线电与信息处理教育部重点实验室,广西桂林541004 [2]桂林理工大学信息科学与工程学院,广西桂林541006

出　　处：《桂林电子科技大学学报》2020年第4期279-285,共7页Journal of Guilin University of Electronic Technology

基　　金：国家自然科学基金(61771151);广西自然科学基金(2019GXNSFBA245103);广西无线宽带通信与信号处理重点实验室基金(GXKL06180109);桂林电子科技大学研究生教育创新计划(2019YCX038);桂林电子科技大学研究生优秀学位论文培育项目(16YJPYBS02)。

摘　　要：针对传统的随机区域收缩(SRC)的相位变换加权的可控响应功率(SRP-PHAT)算法只适用于大孔径麦克风阵列的近场声源定位,且未考虑阵列拓扑结构和阵列校准对定位性能的影响的问题,提出了三维阵列拓扑基于两阶段麦克风自校准方法的声源定位(SSL)系统。实测结果表明,当声源与阵列距离较近时,定位误差在10 cm左右,当声源与阵列距离达到6 m时,相比于传统SPR-PHAT方法,定位误差降低了48%,达到了室内声源定位的精度要求。The traditional stochastic region contraction(SRC)phase-transformed weighted controllable response power(SRP-PHAT)algorithm is only suitable for localization of large-field microphone array near-field sound sources,and does not consider the array topology and array calibration for positioning performance problems.A three-dimensional array topology based sound source localization(SSL)system based on a two-stage microphone self-calibration method is proposed.The actual measurement results show that when the distance between the sound source and the array is close,the positioning error is about 10 cm.When the distance between the sound source and the array reaches 6 m,the positioning error is reduced by 48%compared to the traditional SPR-PHAT method,and the indoor sound is reached Source positioning accuracy requirements.

关 键 词：频率响应 麦克风阵列拓扑结构 声源定位 定位性能 

分 类 号：TN912.3[电子电信—通信与信息系统] TP391.4[电子电信—信息与通信工程]