Efficient Steered-Response Power Methods for Sound Source Localization Using Microphone Arrays
| Autor: | Lima, Markus V. S., Martins, Wallace A., Nunes, Leonardo O., Biscainho, Luiz W. P., Ferreira, Tadeu N., Costa, Maurício V. M., Lee, Bowon |
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| Rok vydání: | 2014 |
| Předmět: | |
| Zdroj: | IEEE Signal Processing Letters (Volume:22 , Issue: 8 ), Aug. 2015 |
| Druh dokumentu: | Working Paper |
| DOI: | 10.1109/LSP.2014.2385864 |
| Popis: | This paper proposes an efficient method based on the steered-response power (SRP) technique for sound source localization using microphone arrays: the volumetric SRP (V-SRP). As compared to the SRP, by deploying a sparser volumetric grid, the V-SRP achieves a significant reduction of the computational complexity without sacrificing the accuracy of the location estimates. By appending a fine search step to the V-SRP, its refined version (RV-SRP) improves on the compromise between complexity and accuracy. Experiments conducted in both simulated- and real-data scenarios demonstrate the benefits of the proposed approaches. Specifically, the RV-SRP is shown to outperform the SRP in accuracy at a computational cost of about ten times lower. Comment: 14 pages, 9 figures, 5 tables |
| Databáze: | arXiv |
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