Institut Français des Sciences et Technologies des Transports, de l'Aménagement et des Réseaux

Type de document

ARTICLE A COMITE DE LECTURE REPERTORIE DANS BDI (ACL)

Langue

anglais

Auteur

AULANIER ; NICOLAS ; ROUX ; MARS

Résumé / Abstract

In the Born approximation, the acoustic scattering from a spherical obstacle of a size comparable to the acoustic wavelength can be evaluated in the framework of the sensitivity kernel approach, which describes the relationship between the pressure-field fluctuation and the position of a local change in the propagation medium. The spatial structure of the sensitivity kernel is here investigated through experimental observations made in a water tank at the ultrasonic scale and compared to an analytical model. The pattern of the sensitivity kernel is discussed in the case of a source-to-receiver wave field that includes a direct path and one surface reflection.

Source

Journal of the Acoustical Society of America, num. 1, pp. 88-96 p.

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