摘要
文章将双测量面阵列引入到波束成形(Beamforming)方法中,建立一种基于双测量面阵列的Beam-forming方法;该方法首先采用2个测量面获取声压,通过平面波近似和声压叠加原理,推导出一种简单有效的去除干扰声源影响的方法;随后以去除干扰后的声压代替测量声压作为输入,采用多重信号分类算法进行Beamforming重建,实现对目标声源的识别。数值仿真和实验研究表明,该方法可以有效地去除干扰声源的影响,准确地定位出目标声源位置。
A method for locating target sound sources via beamforming using a double layer array is proposed. The sound pressure is obtained via a double layer array and a simple and effective method of removing the influence of the disturbing source is given based on plane wave approximation and sound pressure superposition principles. Then the sound pressure after removing disturbing source is input- ted instead of the original sound pressure and the multiple signal classification（MUSIC） algorithm is used to obtain the map of source distribution. The numerical simulation and experimental results dem- onstrate that the proposed method can remove the influence of the disturbing source effectively and lo- cate the target sound source correctly.
出处
《合肥工业大学学报（自然科学版）》
CAS
CSCD
北大核心
2012年第8期1049-1053,1121,共5页
Journal of Hefei University of Technology：Natural Science
基金
国家自然科学基金资助项目(10974040
51105126)
教育部新世纪优秀人才支持计划资助项目(NCET-08-0767)
高等学校博士学科点专项科研基金资助项目(20100111110007)
关键词
波束成形
声源定位
多重信号分类算法
beamforming
sound source localization
multiple signal classification（MUSIC） algorithm
