Nonlinear imaging of 3D defect in anisotropic laminate using joint sparsity constraints

Abstract : In the following the reconstruction of 3D defect affecting an anisotropic laminate is delt with. The nonlinear problem is solved using a two step procedures in which the equivalent current are first search for by enforcing a joint sparsity prior. Once the equivalent currents known, the total field is computed via the resolution of the state integral equation and the contrast is estimated. Preliminary results will be presented in a microwave regime.
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Hidayet Zaimaga, Aurélia Fraysse, Marc Lambert. Nonlinear imaging of 3D defect in anisotropic laminate using joint sparsity constraints. 18th International Symposium on Applied Electromagnetics and Mechanics (ISEM 2017), Sep 2017, Chamonix, France. ⟨hal-01587782⟩

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