基于提高定位精度的圆形嵌套麦克风阵列结构研究  

Study on improved localization accuracy based on nested uniform circular microphone array configuration

作　　者：曾宪燎 李炜[1] 

机构地区：[1]电子科技大学电子科学技术研究院,成都611731

出　　处：《计算机应用研究》2016年第4期1169-1171,1178,共4页Application Research of Computers

基　　金：国家自然科学基金资助项目(61403065);四川省基础科研计划资助项目(2015JY0084);国家教育部博士点基金资助项目(20120185120034);中央高校基本业务费资助项目(ZYGX2011J130)

摘　　要：以提高定位精度为目的,同时从减少定位时延、消除定位模糊的角度出发,并且考虑到线阵定位角度范围的限制,提出了嵌套的均匀圆形麦克风阵列结构。由于在使用高分辨率的近场声源三维定位算法时会带来较高的计算复杂度,所以采用了宽带聚焦算法进行处理,使其时延得到较大幅度的降低。仿真结果表明,该方案取得了较好的定位效果。In order to improve the localization accuracy,considering the linear array localization angle range limits at the same time,this paper proposed the nested uniform circular microphone array configuration to reduce the localization delay and eliminate the localization ambiguity. As the utilization of near-field acoustic source 3D localization algorithm with high resolution resulted in high computing complexity,it adopted wideband focusing algorithm to make the delay time being reduced greatly. Simulation results show that this scheme has better localization effect.

关 键 词：定位模糊 嵌套均匀麦克风圆阵 近场声源三维定位算法 计算复杂度 宽带聚焦算法 

分 类 号：TN912[电子电信—通信与信息系统]