Université Paris 6
Pierre et Marie Curie
Université Paris 7
Denis Diderot

CNRS U.M.R. 7599
``Probabilités et Modèles Aléatoires''

Refocusing of a time-reversed acoustic pulse propagating in randomly layered media

Auteur(s):

Code(s) de Classification MSC:

Résumé: In this paper, we study the propagation of acoustic waves in a layered random media. Using the time-reversed method, we prove the space-time refocusing effect and the stabilization for acoustic signals. This work is a generalization of [6] and [10] in the three-dimensional case.

Mots Clés: Acoustic waves ; random media ; reflected velocity ; time reversal method ; stochastic equations

Date: 2000-03-09

Prépublication numéro: PMA-573