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
Contributor : Sonia Fliss
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Submitted on : Monday, September 1, 2014 - 10:53:07 AM
Last modification on : Thursday, February 7, 2019 - 5:49:18 PM
Document(s) archivé(s) le : Tuesday, December 2, 2014 - 10:11:16 AM
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⟩
