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CSI-CFI formulations of the multiresolution Inexact Newton method — A numerical comparison

A numerical comparison of two innovative microwave imaging strategies is presented. To effectively tackle the non-linearity and ill-posedness arising in the inversion process, the techniques integrate a multi-resolution approach with two different ‘Inexact-Newton’ methods developed either within the contrast source or within the contrast field formulations of the inverse scattering problem. A set of preliminary numerical results is presented to compare the features and potentialities of the methods.