Abstract : The aim of this paper is to apply the Linear Sampling Method and the Factorization Method to retrieve some defects in a known periodic 2D waveguide from scattering data. More precisely, some far field approximations of these two sampling methods are derived. They amount to consider the so-called propagating Floquet modes as incident waves. The efficiency of the far field formulation of the LSM is shown with the help of some numerical experiments.
https://hal.inria.fr/hal-00914674
Contributeur : Sonia Fliss
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Soumis le : lundi 1 septembre 2014 - 10:53:07
Dernière modification le : jeudi 11 janvier 2018 - 06:20:23
Document(s) archivé(s) le : mardi 2 décembre 2014 - 10:11:16
Laurent Bourgeois, Sonia Fliss. On the identification of defects in a periodic waveguide from far field data. Inverse Problems, IOP Publishing, 2014, 30 (9), 〈10.1088/0266-5611/30/9/095004〉. 〈hal-00914674v2〉
