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Conference Papers Year : 2021

Use of sparsity in nonlinear electromagnetic imaging: wavelet-based contrast source method

Abstract

A contrast source inversion (CSI) algorithm is developed in the wavelet domain in order to tackle nonlinear electro- magnetic inverse scattering with the benefit of sparsity. The soft-thresholding technique is applied here to sparsify the reconstruction. Numerical results show the potential of the proposed approach to improve the quality of reconstruction compared to the original CSI method.
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Dates and versions

hal-03225687 , version 1 (12-05-2021)

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Yarui Zhang, Marc Lambert, Aurelia Fraysse, Dominique Lesselier. Use of sparsity in nonlinear electromagnetic imaging: wavelet-based contrast source method. XXXIV General Assembly and Scientific Symposium (GASS) of the International Union of Radio Science, Aug 2021, Rome, Italy. ⟨10.23919/URSIGASS51995.2021.9560576⟩. ⟨hal-03225687⟩
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