A microphone position calibration method based on combination of acoustic energy decay model and TDOA for distributed microphone array

被引：15

作者：

Chen, Zhe ^{[1
]}

Li, Zhenglin ^{[1
]}

Wang, Shuwen ^{[1
]}

Yin, Fuliang ^{[1
]}

机构：

[1] Dalian Univ Technol, Sch Informat & Commun Engn, Dalian 116023, Peoples R China

来源：

APPLIED ACOUSTICS | 2015年 / 95卷

基金：

中国国家自然科学基金; 高等学校博士学科点专项科研基金;

关键词：

Distributed microphone array; Calibration; Acoustic energy decay model; Time difference of arrival; Minimum mean square error estimation; SELF-CALIBRATION; SOURCE LOCALIZATION;

D O I：

10.1016/j.apacoust.2015.02.013

中图分类号：

O42 [声学];

学科分类号：

070206 ; 082403 ;

摘要：

The geometrical structure and size of a distributed microphone array are usually irregular, and need to be estimated in many applications. A microphone position calibration method based on combination of acoustic energy decay model and time difference of arrival for distributed microphone arrays is proposed in this paper. The method utilizes the acoustic energy decay model to estimate the coarse distance between the microphone and the sound source, and then applies time difference of arrival to search for the accurate distance within a certain range near the coarse distance. Finally, the minimum mean square error estimation method is employed to determine the position of the microphone. The proposed method has a high positioning accuracy, stable calibration performance and low computational complexity. Simulation results reveal the validity of the proposed method at a theoretical level. (C) 2015 Elsevier Ltd. All rights reserved.

引用

页码：13 / 19

页数：7

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