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

Published online by Cambridge University Press:  09 March 2016

S.-C. Lin ,
G.-P. Too  and
C.-W. Tu
S.-C. Lin*
Affiliation:
Department of Systems and Naval Mechatronic EngineeringNational Cheng Kung UniversityTainan City, Taiwan
G.-P. Too
Affiliation:
Department of Systems and Naval Mechatronic EngineeringNational Cheng Kung UniversityTainan City, Taiwan
C.-W. Tu
Affiliation:
Department of Systems and Naval Mechatronic EngineeringNational Cheng Kung UniversityTainan City, Taiwan
*
*Corresponding author (p18981077@mail.ncku.edu.tw)
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Abstract

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.

Keywords

TriangulationSource localizationTime reversalTime difference of arrival
Type
Research Article
Information
Journal of Mechanics , Volume 34 , Issue 1 , February 2018 , pp. 35 - 40
Copyright
Copyright © The Society of Theoretical and Applied Mechanics 2018 

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