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 [BibTeX] [Marc21]
Robust Microphone Placement for Source Localization from Noisy Distance Measurements
Type of publication: Conference paper
Citation: Taghizadeh_ICASSP15_2015
Publication status: Published
Booktitle: IEEE 40th International Conference on Acoustics, Speech and Signal Processing (ICASSP)
Year: 2015
Month: April
Pages: 2579-2583
Publisher: IEEE
ISSN: 1520-6149
DOI: 10.1109/ICASSP.2015.7178437
Abstract: We propose a novel algorithm to design an optimum array geometry for source localization inside an enclosure. We assume a square-law decay propagation model for the sound acquisition so that the additive noise on the measured source-microphone distances is proportional to the distances regardless of the noise distribution. We formulate the source localization as an instance of the ``Generalized Trust Region Subproblem'' (GTRS) whose solution gives the location of the source. We show that by suitable selection of the microphone locations, one can tremendously decrease the noise-sensitivity of the resulting solution. In particular, by minimizing the noise-sensitivity of the source location in terms of sensor positions, we find the optimal noise-robust array geometry for the enclosure. Simulation results are provided to show the efficiency of the proposed algorithm.
Keywords: Generalized Trust Region Subproblem (GTRS)., Robust microphone placement, Source localization
Projects Idiap
Authors Taghizadeh, Mohammad J.
Haghighatshoar, Saeid
Asaei, Afsaneh
Garner, Philip N.
Bourlard, Hervé
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  • Taghizadeh_ICASSP15_2015.pdf