摘要
针对当前麦克风位置估计方法出现较少且只对平面的麦克风阵列进行位置估计的问题,提出了一种基于声源阵列的空间麦克风定位方法。该方法将四个声源按照正四面体形式排列,在利用其对称性保证定位全向性的同时,根据时延估计的测距方法计算麦克风与各个声源之间的距离,之后根据几何关系确定麦克风位置坐标,实现在线的基于声源阵列的空间麦克风位置估计。通过进行MATLAB仿真实验,验证了该方法的可行性和有效性。
Currently,there are fewer microphone position estimation methods and only position estimates are made for a planar microphone array.Aiming at this problem,this paper proposed a spatial microphone positioning method based on sound source array.The method arranged four sound sources in the form of a regular tetrahedron.While using its symmetry to ensure the omnidirectionality of the positioning,the distance between the microphone and each sound source was calculated according to the ranging method of the time delay estimation.The microphone position coordinates were then determined based on the geometric relationship to realize the spatial microphone position estimation based on the sound source array for online positioning.The experimental results verify the feasibility and effectiveness of the proposed method by MATLAB simulation experiment.
作者
陈晓辉
孙昊
张恒
翟葆朔
Chen Xiaohui;Sun Hao;Zhang Heng;Zhai Baoshuo(School of Artificial Intelligence,Hebei University of Technology,Tianjin 300130,China)
出处
《计算机应用研究》
CSCD
北大核心
2020年第5期1437-1439,1444,共4页
Application Research of Computers
基金
国家自然科学基金资助项目(61703135,61503118)
河北省自然科学基金资助项目(F2017202119,F2016202327)。
关键词
声源阵列
时延估计
声达时间差
麦克风定位
sound source array
time delay estimation
time delay of arrival
microphone positioning
