Time delay estimation via non-mutual information among multiple microphones

被引：9
|
作者：
He, Hongsen [1 ,2 ,3 ]
Lu, Jing [1 ,2 ]
Wu, Lifu [1 ,2 ]
Qiu, Xiaojun [1 ,2 ]
机构：
[1] Nanjing Univ, Inst Acoust, Nanjing 210093, Jiangsu, Peoples R China
[2] Nanjing Univ, Key Lab Modern Acoust, MOE, Nanjing 210093, Jiangsu, Peoples R China
[3] Southwest Univ Sci & Technol, Sch Informat Engn, Mianyang 621010, Peoples R China
来源：
APPLIED ACOUSTICS | 2013年 / 74卷 / 08期
关键词：
Source localization; Time delay estimation (TDE); Microphone array; Non-mutual information; CROSS-CORRELATION;
D O I：
10.1016/j.apacoust.2013.02.001
中图分类号：
O42 [声学];
学科分类号：
070206 ; 082403 ;
摘要：
Time delay estimation (TDE) is an important part of sound source localization in hands-free communication systems. TDE in room acoustic environments is usually affected by reverberation. To improve the robustness of time delay estimators to reverberation, a novel TDE algorithm is proposed from information theory perspective. The non-mutual information among multiple microphone signals is extracted to estimate the time delay. Superiority of the proposed algorithm is demonstrated in reverberant environments. (C) 2013 Elsevier Ltd. All rights reserved.
引用
收藏
页码：1033 / 1036
页数：4
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