Development of the Source Reconstruction System by Combining Sound Source Localization and Time Reversal Method

This study explored the target sound source location at unknown situation and processed the received signal to determine the location of the target, including the reconstructed signal of source immediately. In this paper, it used triangulation sound sources localization and time reversal method (TRM...

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Bibliographic Details
Published inJournal of mechanics Vol. 34; no. 1; pp. 35 - 40
Main Authors Lin, S.-C., Too, G.-P., Tu, C.-W.
Format Journal Article
LanguageEnglish
Published Cambridge, UK Cambridge University Press 01.02.2018
Oxford University Press
Subjects
Cartesian coordinates
Economic models
Impulse response
Localization
Localization method
Response functions
Signal processing
Sound sources
Triangulation
Triangulation
Time difference of arrival
Source localization
Time reversal
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Summary:This study explored the target sound source location at unknown situation and processed the received signal to determine the location of the target, including the reconstructed signal of source immediately. In this paper, it used triangulation sound sources localization and time reversal method (TRM) to reconstruct the source signals. The purpose is to use a sound source localization method with a simple device to quickly locate the position of the sound source. This method uses the microphone array to measure signal from the target sound source. Then, the sound source location is calculated and is indicated by Cartesian coordinates. The sound source location is then used to evaluate free field impulse response function which can replace the impulse response function used in time-reversal method. This process reduces the computation time greatly which makes possible for a real time source localization and source signal separation.
ISSN:1727-7191
1811-8216
DOI:10.1017/jmech.2016.13