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Source Localization by Simulation of Time Reversal Wave and Its Resolution Improvement with Deconvolution Technique

  • N. Wakatsuki
  • K. Mizutani
Conference paper
Part of the Acoustical Imaging book series (ACIM, volume 29)

Abstract

We propose a source localization method based on a simulation of the time reversal wave. The fundamental principle has already been proposed. In this paper, the principle is applied to the sound field surrounded by reflective boundaries. The resolution is limited due to the length of the driving signal in ordinary way. However, the resolution can be improved by deconvolution technique if the waveform of the sound source is known. The proposed method can possibly be applied to acoustical flaw detection. In this paper, the source localization is only simulated numerically. We are planning experimental verifications in the future.

Key words

Source localization Time reversal wave Transmission line matrix Fourier self-deconvolution Resolution improvement 

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References

  1. 1.
    M. Fink: IEEE Trans. Ultrason. Ferroelec. Freq. Contr. 39 (1992) 555.Google Scholar
  2. 2.
    Y. Kagawa, T. Tsuchiya, K. Fujioka and M. Takeuchi: J. Sound Vib. 255 (1999) 61.Google Scholar
  3. 3.
    J. K. Kauppinen, D. J. Moffatt, H. H. Mantsch and D. G. Cameron: Appl. Spectrosc. 35 (1981) 271.Google Scholar

Copyright information

© Springer Science+Business Media B.V. 2008

Authors and Affiliations

  • N. Wakatsuki
    • 1
  • K. Mizutani
    • 1
  1. 1.Graduate School of Systems and Information EngineeringUniversity of TsukubaJapan

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