Iterative high-resolution wavenumber inversion applied to broadband acoustic data

Philippe Roux; Franck D. Philippe; Didier Cassereau

doi:10.1109/TUFFC.929

Journal articles

Iterative high-resolution wavenumber inversion applied to broadband acoustic data

Philippe Roux ¹ Franck D. Philippe ² Didier Cassereau ²

1 LGIT - Laboratoire de Géophysique Interne et Tectonophysique

2 LOA - Laboratoire Ondes et Acoustique

Abstract : This paper presents the results of an iterative high-resolution wavenumber inversion algorithm applied to acoustic waveguides in which wave propagation is described by propagating modes. Following work on the first description of the inversion algorithm, a generalization to broadband signals is performed and experimental data are investigated. The algorithm leads to dispersion curves for propagating modes in the case of an ultrasonic waveguide and an elastic plate. Results are compared with spatial-temporal Fourier transforms.

Keywords : Fourier transforms acoustic waveguides iterative methods plates (structures) ultrasonic propagation

Document type :

Journal articles

Domain :

Sciences of the Universe [physics] / Earth Sciences / Geophysics [physics.geo-ph]

Complete list of metadata

https://hal-insu.archives-ouvertes.fr/insu-00372057
Contributor : Pascale Talour <>
Submitted on : Tuesday, March 31, 2009 - 11:29:25 AM
Last modification on : Friday, March 12, 2021 - 3:33:07 AM

Iterative high-resolution wavenumber inversion applied to broadband acoustic data

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Iterative high-resolution wavenumber inversion applied to broadband acoustic data

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