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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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https://hal-centralesupelec.archives-ouvertes.fr/hal-03225687
Contributor : Dominique Lesselier <>
Submitted on : Wednesday, May 12, 2021 - 7:46:12 PM
Last modification on : Thursday, May 27, 2021 - 10:34:38 AM

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  • HAL Id : hal-03225687, version 1

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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. ⟨hal-03225687⟩

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