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THE CONTRAST SOURCE-EXTENDED BORN MODEL FOR 2D SUBSURFACE SCATTERING PROBLEMS

By L. Crocco, M. D'Urso, and T. Isernia

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Abstract:
In this paper, we describe a new full-wave integral equation model to tackle electromagnetic scattering problems arising from objects buried in layered media. Such a model is a rewriting of the usually adopted Contrast Source integral equation and is named Contrast Source-Extended Born (CS-EB) owing to this circumstance and to the relationship existing among its linearization and the Extended Born approximation. By means of this alternative formulation, it is possible to modify the relationship among the scatterer permittivity and the field it scatters, thus possibly reducing the degree of non-linearity of this latter relationship. Accordingly, in these cases, the adoption of the CS-EB model may be convenient with respect to traditional ones in both forward and inverse scattering problems.

Citation:
L. Crocco, M. D'Urso, and T. Isernia, "The Contrast Source-Extended Born Model for 2D Subsurface Scattering Problems," Progress In Electromagnetics Research B, Vol. 17, 343-359, 2009.
doi:10.2528/PIERB09080502

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