DocumentCode :
3414134
Title :
Multi-source direction-of-arrival estimation in a reverberant environment using single acoustic vector sensor
Author :
Kai Wu ; Reju, V.G. ; Khong, Andy W. H.
Author_Institution :
Sch. of Electr. & Electron. Eng., Nanyang Technol. Univ., Singapore, Singapore
fYear :
2015
fDate :
19-24 April 2015
Firstpage :
444
Lastpage :
448
Abstract :
We address the problem of estimating direction-of-arrivals (DOAs) for multiple sound sources using a single acoustic vector sensor (AVS) in an enclosed room environment. It is well-known that multi-source DOA estimation in an enclosed environment is challenging due to room reverberation, environmental noise and overlapping of the source spectra. In this work, we propose a multi-source DOA estimation algorithm which exploits co-location of the sensor elements in AVS. We identify time-frequency (TF) zones of the received signals in which only one source is dominant with a high signal-to-reverberation ratio. DOA estimation is then achieved via the use of clustering of the Hermitian angle feature. Simulation results show that the proposed DOA estimation algorithm is robust to both reverberation and environmental noise.
Keywords :
acoustic radiators; direction-of-arrival estimation; reverberation; AVS; Hermitian angle feature; acoustic sources; environmental noise; multiple sound sources; multisource DOA estimation; multisource DOA estimation algorithm; multisource direction-of-arrival estimation; received signals; reverberant environment; reverberation noise; room reverberation; signal-to-reverberation ratio; single acoustic vector sensor; source spectra; Estimation; Feature extraction; Filtering; Multiple signal classification; Reverberation; Hermitian angle; Multi-source DOA estimation; acoustic vector sensor; time-frequency sparsity;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Acoustics, Speech and Signal Processing (ICASSP), 2015 IEEE International Conference on
Conference_Location :
South Brisbane, QLD
Type :
conf
DOI :
10.1109/ICASSP.2015.7178008
Filename :
7178008
Link To Document :
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