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- Anne-Sophie Bonnet-Ben Dhia, Ghania Dakhia, Christophe Hazard, Lahcène Chorfi
- SIAM Journal of Applied Mathematics
- 2009

We consider the scattering of a time-harmonic acoustic wave by a defect in a twodimensional open waveguide. The scattered wave satisfies the Helmholtz equation in a perturbed layered half-plane. We introduce a modal radiation condition based on a generalized Fourier transform which diagonalizes the transverse contribution of the Helmholtz operator. The… (More)

We consider an inverse transmission scattering problem. This problem consists in determining an interface between two-layered media by farfield measurements. We prove that the interface is uniquely determined by the measurements of the far field pattern associated to incoming plane waves at a fixed frequency. For the reconstruction of the interface we solve… (More)

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