Cramér-Rao Bound of Time Delay Estimation for Microphone Array

WANG Dong-xia; YIN Fu-liang; CHEN Zhe

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Cramér-Rao Bound of Time Delay Estimation for Microphone Array

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- Cramér-Rao Bound of Time Delay Estimation for Microphone Array
- Acta Electronica Sinica Vol. 36, Issue 12, Pages: 2473-2477(2008)
- 作者机构：
  
  1. 辽宁工业大学电子与信息工程学院,辽宁,锦州,121001
  2. 大连理工大学电子与信息工程学院,辽宁,大连,116023
  3. 辽宁工业大学电子与信息工程学院辽宁锦州,121001
  4. 大连理工大学电子与信息工程学院辽宁大连,116023
- 作者简介：
- 基金信息：
- DOI：
  CLC： TN912.3
- Published Online：25 December 2008，
  
  Published：2008
- 稿件说明：
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WANG Dong-xia, YIN Fu-liang, CHEN Zhe. Cramér-Rao Bound of Time Delay Estimation for Microphone Array[J]. Acta Electronica Sinica, 2008, 36(12): 2473-2477.
DOI：

WANG Dong-xia, YIN Fu-liang, CHEN Zhe. Cramér-Rao Bound of Time Delay Estimation for Microphone Array[J]. Acta Electronica Sinica, 2008, 36(12): 2473-2477. DOI：

摘要

麦克风阵列拓扑结构对麦克风阵列语音处理系统具有重要影响.该文针对麦克风阵列语音处理系统的时延估计性能

通过对声源和麦克风空间位置的几何描述

推导出了时延估计的Cramér-Rao界限

分析了麦克风阵列拓扑结构对其时延估计性能的影响

并给出了常见的麦克风阵列拓扑结构时延估计性能的仿真实验.实验结果有效地验证了理论分析所得出的结论.

Abstract

Microphone array placement has an important influence on the performance of microphone array speech processing system.For the performance of its time delay estimation(TDE)

Cramér-Rao Bound(CRB)of TDE is derived by use of geometrical description of source and microphones

and the effect of microphone array configurations on its TDE performance is analyzed in this paper.Simulation experiments are done on the TDE performance of conventional microphone array configurations.Simulation results effectively verify the conclusion.

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Related Institution

Speech and Audio Signal Processing Laboratory, Faculty of Information Technology, Beijing University of Technology

Colege of Computer and Communication,Hunan University

State Key Laboratory of Integrated Service Networks, Xidian University

The 61st Research Institute of General Staff Headquarters

Colege of Computer and CommunicationHunan UniversityChangshaHunan 410082China

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