Imaging an acoustic waveguide from surface data in the time domain

Vahan Baronian 1 Laurent Bourgeois 2 Arnaud Recoquillay 2, 1
2 POEMS - Propagation des Ondes : Étude Mathématique et Simulation
Inria Saclay - Ile de France, ENSTA ParisTech UMA - Unité de Mathématiques Appliquées, CNRS - Centre National de la Recherche Scientifique : UMR7231
Abstract : This paper deals with an inverse scattering problem in an acoustic waveguide. The data consist of time domain signals given by sources and receivers located on the boundary of the waveguide. After transforming the data to the frequency domain, the obstacle is then recovered by using a modal formulation of the Linear Sampling Method. The impact of many parameters are analyzed, such as the numbers of sources/receivers and the distance between them, the time shape of the incident wave and the number and the values of the frequencies that are used. Some numerical experiments illustrate such analysis.
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Article dans une revue
Wave Motion, Elsevier, 2016, 66, pp.68 - 87. <10.1016/j.wavemoti.2016.05.006>
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Vahan Baronian, Laurent Bourgeois, Arnaud Recoquillay. Imaging an acoustic waveguide from surface data in the time domain. Wave Motion, Elsevier, 2016, 66, pp.68 - 87. <10.1016/j.wavemoti.2016.05.006>. <hal-01379890>

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