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Media type:
E-Article
Title:
Acoustic source detection and localization based on wavefield decomposition using circular microphone arrays
Contributor:
Teutsch, Heinz;
Kellermann, Walter
Published:
Acoustical Society of America (ASA), 2006
Published in:
The Journal of the Acoustical Society of America, 120 (2006) 5, Seite 2724-2736
Language:
English
DOI:
10.1121/1.2346089
ISSN:
0001-4966;
1520-8524
Origination:
Footnote:
Description:
This paper is concerned with the problem of detecting and localizing multiple wideband acoustic sources by applying the notion of wavefield decomposition using circular microphone arrays optionally mounted into cylindrical baffles. The decomposed wavefield representation is used to serve as a basis for so-called modal array signal processing algorithms, which have the significant advantage over classical array signal processing algorithms that they inherently support multiple wideband acoustic sources. A rigorous derivation of modal array signal processing algorithms for source detection and localization, as well as performance evaluations, by means of measurements using an actual real-time capable implementation are presented.