Acoustic Source Localization under Variable Speed of Sound Conditions

Journal article
(Review article)


Publication Details

Author(s): Rabenstein R, Annibale P
Journal: Wireless Communications & Mobile Computing
Publication year: 2017
Volume: 2017
ISSN: 1530-8669
eISSN: 1530-8677
Language: English


Abstract


The rich literature on acoustic source localization mostly relies on the assumption of a constant value for the speed of sound. This hypothesis allows establishing simple relations between range differences and time differences and leads to effective estimation algorithms. However, it must be challenged for certain applications of wireless acoustic sensor networks in multizone buildings and outdoor environments. This article revisits the source localization problem for the more general case of an unknown value for the speed of sound. It reviews the physical foundations for the dependence of the speed of sound on the air temperature and presents the essential approaches to acoustic source localization. On this basis, several methods for source localization under uncertain or variable speed of sound conditions from the literature are discussed. Applications from different fields are shown. They comprise the localization of sources, sensors, and reflecting surfaces, time-difference-of-arrival disambiguation, and the direct determination of the speed of sound or the air temperature from acoustic measurements.



FAU Authors / FAU Editors

Annibale, Paolo
Lehrstuhl für Multimediakommunikation und Signalverarbeitung
Rabenstein, Rudolf Prof. Dr.
Lehrstuhl für Multimediakommunikation und Signalverarbeitung


How to cite

APA:
Rabenstein, R., & Annibale, P. (2017). Acoustic Source Localization under Variable Speed of Sound Conditions. Wireless Communications & Mobile Computing, 2017. https://dx.doi.org/10.1155/2017/9524943

MLA:
Rabenstein, Rudolf, and Paolo Annibale. "Acoustic Source Localization under Variable Speed of Sound Conditions." Wireless Communications & Mobile Computing 2017 (2017).

BibTeX: 

Last updated on 2018-19-04 at 04:21