DRIRA, Achraf; GUILLON, Laurent; BOUDRAA, Abdel-Ouahab

doi:10.1121/1.4874235

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DRIRA, Achraf
Institut de Recherche de l'Ecole Navale [IRENAV]

GUILLON, Laurent
Institut de Recherche de l'Ecole Navale [IRENAV]

BOUDRAA, Abdel-Ouahab
Institut de Recherche de l'Ecole Navale [IRENAV]

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Journal of the Acoustical Society of America. 2014-06, vol. 135, n° 6, p. EL258-EL264

Acoustical Society of America

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This letter presents an improvement of the image source method (ISM) for geoacoustic inversion. The new algorithm is based on the Teager-Kaiser Energy Operator which ampli es the discontinuities in signals while the soft transitions are reduced. This property is exploited for accurate detection of time arrivals and thus for location of the image sources. The e ectiveness of the method is shown on both synthetic and real data and the inversion results are, overall, in good agreement with ground truth and other inversion results with a signi cant reduction of computation time.< Leer menos

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Image source detection for geoacoustic inversion by Teager-Kaiser energy operator

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