Acoustic source localization and speed estimation based on time-differences-of-arrival under temperature variations

Conference contribution
(Conference Contribution)


Publication Details

Author(s): Annibale P, Rabenstein R
Publication year: 2010
Pages range: 721-725


Abstract


In the context of acoustic source localization, knowing the actual propagation speed is crucial especially in uncontrolled environments where the temperature is subject to significant changes that influence the sound speed. In a recent paper we showed the effects of the assumed propagation speed on the localization performance of two closed-form localization algorithms based on TDOA measurements. It has been shown that the so-called unconstrained least squares method is not significantly influenced by a wrongly assumed propagation speed, whereas the constrained method, the one statistically more attractive, is impaired even by small speed deviations. In this article we study in more depth the causes of this disparity and we propose a novel technique to estimate the propagation speed and improve the localization performance when the environment conditions, i.e. the air temperature, are not known exactly. © EURASIP, 2010.



FAU Authors / FAU Editors

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


How to cite

APA:
Annibale, P., & Rabenstein, R. (2010). Acoustic source localization and speed estimation based on time-differences-of-arrival under temperature variations. (pp. 721-725). Aalborg, DK.

MLA:
Annibale, Paolo, and Rudolf Rabenstein. "Acoustic source localization and speed estimation based on time-differences-of-arrival under temperature variations." Proceedings of the 18th European Signal Processing Conference, EUSIPCO 2010, Aalborg 2010. 721-725.

BibTeX: 

Last updated on 2018-06-08 at 11:53