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

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

Behaviour of time-reversed pulses in random media

Auteur(s):

Code(s) de Classification MSC:

Résumé: We consider a time-reversed transmitted pulse travelling in a random medium with rapid fluctuations. We prove that this pulse focuses in time at the place of the initial source and emerges to the random media, in a particular random travel time, with a deterministic shape.

Mots Clés: Waves in random media ; transmitted pulse ; time reversal method ; stochastic equations

Date: 1999-11-25

Prépublication numéro: PMA-542