Improved TDOA Disambiguation Techniques for Sound Source Localization in Reverberant Environments

被引：0
|
作者：
Zannini, Cecilia Maria [1 ]
Cirillo, Albenzio [1 ]
Parisi, Raffaele [1 ]
Uncini, Aurelio [1 ]
机构：
[1] Univ Roma La Sapienza, INFOCOM Dept, I-00184 Rome, Italy
来源：
2010 IEEE INTERNATIONAL SYMPOSIUM ON CIRCUITS AND SYSTEMS | 2010年
关键词：
Time Difference of Arrival Estimation; Sound Source Localization; Reverberation; MULTIPLE SOURCES;
D O I：
暂无
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
Given a single sound source in a non reverberant environment, an estimate of the Time Difference Of Arrival (TDOA) between microphones can be obtained by observing the time value at which the cross correlation of the two microphone signals displays a maximum. In the presence of reverberation, however, the cross correlation function displays a great number of local maxima caused by reflected signals blending unpredictably. This results in TDOA estimation ambiguity, making correct source localization impossile. The aim of this work is to present an improved disambiguation algorithm and compare it to existing algorithms in terms of estimation accuracy and processing time.
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页码：2666 / 2669
页数：4
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