A Volumetric SRP with Refinement Step for Sound Source Localization

Autor:	Wallace A. Martins, Bowon Lee, Mauricio do V. M. da Costa, Tadeu N. Ferreira, Luiz W. P. Biscainho, Leonardo O. Nunes, Markus V. S. Lima
Rok vydání:	2015
Předmět:	Reduction (complexity) Computer science Microphone Applied Mathematics Signal Processing Acoustic source localization Electrical and Electronic Engineering Algorithm Power (physics)
Zdroj:	IEEE Signal Processing Letters. 22:1098-1102
ISSN:	1558-2361 1070-9908
DOI:	10.1109/lsp.2014.2385864
Popis:	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.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::4200f837b872a03dee0daca099e8dc92 https://doi.org/10.1109/lsp.2014.2385864 Zobrazit plný text záznamu