DocumentCode :
109055
Title :
A Volumetric SRP with Refinement Step for Sound Source Localization
Author :
Lima, Markus V. S. ; Martins, Wallace A. ; Nunes, Leonardo O. ; Biscainho, Luiz W. P. ; Ferreira, Tadeu N. ; Costa, Mauricio V. M. ; Bowon Lee
Author_Institution :
Dept. of Electr. Eng., Univ. Fed. do Rio de Janeiro, Rio de Janeiro, Brazil
Volume :
22
Issue :
8
fYear :
2015
fDate :
Aug. 2015
Firstpage :
1098
Lastpage :
1102
Abstract :
This letter proposes an efficient method based on the steered-response power (SRP) technique for sound source localization using microphone arrays: the refined volumetric SRP (RV-SRP). By deploying a sparser volumetric grid, the RV-SRP achieves a significant reduction of the computational complexity without sacrificing the accuracy of location estimates. In addition, a refinement step improves on the compromise between complexity and accuracy. Experiments conducted in both simulated- and real-data scenarios show that the RV-SRP outperforms state-of-the-art methods in accuracy with lower computational cost.
Keywords :
computational complexity; microphone arrays; sensor placement; computational complexity; microphone arrays; sound source localization; sparser volumetric grid; steered-response power; Accuracy; Acoustics; Computational complexity; Linear programming; Microphones; Microwave integrated circuits; Computational complexity; microphone array; sound source localization; steered-response power;
fLanguage :
English
Journal_Title :
Signal Processing Letters, IEEE
Publisher :
ieee
ISSN :
1070-9908
Type :
jour
DOI :
10.1109/LSP.2014.2385864
Filename :
6998003
Link To Document :
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