数据采集与处理Issue(2)：344-349,6.DOI:10.16337/j.1004-9037.2015.02.012
基于圆形麦克风阵列的声源定位改进算法
Improved Algorithm of Sound Source Localization Using Circular Microphone Array
摘要
Abstract
In view of the problems of inaccurate localization and ambiguous orientation of traditional cross power spectrum(CS)in direction of arrival estimation,an improved algorithm of sound source localization using a circular microphone array is proposed and demonstrated by practical experiments.In the proposed algorithm,the twelve-element circular microphone array is firstly designed,then the phase rotation fac-tor is defined by combining the time delay with the phase information of speech signals received by each pair of microphone and introduced into the traditional cross power spectrum to define novel circular inte-grated cross power spectrum(CICS),finally the sound source orientation can be estimated by CICS algo-rithm.The simulation and practical experiment results show that the proposed algorithm can greatly im-prove the estimated accuracy of source orientation compared with the traditional cross spectrum algo-rithm.关键词
波达方向/互功率谱/时间延迟/相位旋转因子/麦克风阵列Key words
direction of arrival (DOA)/cross power spectrum/time delay/phase rotation factor/micro-phone array分类
数理科学引用本文复制引用
郭业才,宋宫琨琨,吴礼福,孙心宇,王丽华..基于圆形麦克风阵列的声源定位改进算法[J].数据采集与处理,2015,(2):344-349,6.基金项目
江苏省高校自然科学基金(13KJA510001)重大资助项目 （13KJA510001）
江苏省高校科研成果产业化推进(JHB2012-9)资助项目 （JHB2012-9）
江苏省高校“信息与通信工程”优势学科建设工程(2014)资助项目 （2014）
江苏省六大人才高峰(2008026)资助项目 （2008026）
国家自然科学基金青年基金(51405241)资助项目。 （51405241）
