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Proceedings of the Seventh European Conference on Underwater Acoustics, ECUA 2004 Delft, The Netherlands
 

Summary: Proceedings of the Seventh European Conference on Underwater Acoustics, ECUA 2004
Delft, The Netherlands
5-8 July, 2004
PENALIZATION METHOD FOR WAPE ADJOINT BASED
INVERSION OF AN ACOUSTIC FIELD
M. Meyer, J.-P. Hermand, J.-C. Le Gac, M. Asch
Matthias Meyer, Universit´e Libre de Bruxelles, Dept. of Optics and Acoustics,
av. F.-D. Roosevelt 50 - CP 194/5, 1050 Brussels, Belgium, e-mail: mmeyer@ulb.ac.be
Jean-Pierre Hermand, Universit´e Libre de Bruxelles, Dept. of Optics and Acoustics,
av. F.-D. Roosevelt 50 - CP 194/5, -1050 Brussels, Belgium, e-mail: jhermand@ulb.ac.be
Jean-Claude Le Gac, EPSHOM, Centre Militaire d'Oc´eanographie, 13 rue du Chatellier, B.P.
30316, 29603 Brest C´edex, France, e-mail: legac@shom.fr
Mark Asch, Universit´e de Picardie Jules Verne, LAMFA, Facult´e de Math´ematique et d'Informatique,
80039 Amiens C´edex 1, France, e-mail: mark.asch@u-picardie.fr
Penalization methods are required for the successful use of full-field acoustic inversion methods
in the assessment of a shallow water environment. Regularization incorporates additional in-
formation about the desired solution in order to stabilize ill-posed inverse problems and identify
useful solutions. In this paper the application of penalization methods to the adjoint optimiza-
tion formalism is investigated. A side constraint is imposed on the optimal boundary control
of a Claerbout's wide-angle parabolic equation model. The cost function is augmented into a

  

Source: Asch, Mark - Faculté de Mathématiques et d' Informatique, Université de Picardie Jules Verne

 

Collections: Mathematics; Computer Technologies and Information Sciences