Green's function retrieval and frequency-wavenumber methods for multiple source localization

In this work, Green's function retrieval and frequency-wavenumber methods are employed for multiple source localization in an outdoor environment. The Green's function retrieval methods are used to improve the signal-to-noise ratio of the beamforming maps. The frequency-wavenumber method i...

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Bibliographic Details
Published in:	The Journal of the Acoustical Society of America Vol. 148; no. 4; p. 2543
Main Authors:	Denis, Max, Collier, Sandra, Noble, John M., Alberts, W. C. K., Ligon, David A., Sim, Leng K., James, Deryck
Format:	Journal Article
Language:	English
Published:	01-10-2020
Online Access:	Get full text
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Summary:	In this work, Green's function retrieval and frequency-wavenumber methods are employed for multiple source localization in an outdoor environment. The Green's function retrieval methods are used to improve the signal-to-noise ratio of the beamforming maps. The frequency-wavenumber method is adapted to the plane-wave beamforming map to accurately localize real sources, while removing the appearance of ghost sources due to the data-association problem and mitigating missed detections for sources close together. Open field microphone array measurements of active and passive sources are investigated.
ISSN:	0001-4966 1520-8524
DOI:	10.1121/1.5147060