传感技术学报2016，Vol.29Issue(4)：525-530,6.DOI:10.3969/j.issn.1004-1699.2016.04.011
基于TSVD的广义逆波束形成对扩展性噪声源的识别
Research Extended Acoustic Sources Identification Based on TSVD Generalized Inverse Beamforming
摘要
Abstract
Generalized inverse beamforming(GIB)is a kind of high effective and widely used sound source identifica⁃tion method. However,directly identify the sound source via generalized inverse technology will be seriously affected by measurement error,so the reconstruction of the sound source location will deviate from the ture position. To im⁃prove the performance of sound source identification,a new algorithm based on generalized inverse theory and trun⁃cated singular value decomposition(TSVD)was proposed,which is called TSVD-GIB can control the measurement er⁃ror. Through numerical simulations on single source,extended sources,a comparison between the conventional beam⁃forming,GIB algorithm,TSVD-GIB algorithm is carried to check their qualities of sound source identification affect⁃ed by factors such as source type and frequency. Finally,the experiment on speakers is implemented in Semi-anecho⁃ic chamber to verify the sound source identification,and the result shows that the TSVD-GIB algorithm owns better ro⁃bustness,which can effectively reduce the side lobe interference and more accurately compared with GIB algorithm.关键词
声源识别/广义逆波束形成/截断奇异值分解/迭代Key words
sound source identification/generalized inverse beamforming/truncated singular value decomposition/iteration分类
通用工业技术引用本文复制引用
叶虹敏,王强,袁昌明,范昕炜,谷小红..基于TSVD的广义逆波束形成对扩展性噪声源的识别[J].传感技术学报,2016,29(4):525-530,6.基金项目
国家自然科学基金项目（51275498）；质检公益性行业科研专项目 （）
