Direct scattering methods in presence of interfaces with different media

Ponti, Cristina; Schettini, Giuseppe

doi:10.23919/eucap.2017.7928469

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2020

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“…The validity of this inversion scheme is assessed in its forward scattering formulation, as well as in its application to the imaging procedure. For the validation of the proposed technique, an analytical solver has been employed, called the cylindrical wave approach (CWA) [37][38][39][40][41]. It provides an analytical/numerical solution to a layout with buried targets, given by circular cross-section cylinders, employing cylindrical waves as basis functions of the scattered field.…”

Section: Introductionmentioning

confidence: 99%

Through-the-Wall Microwave Imaging: Forward and Inverse Scattering Modeling

Fedeli

Pastorino

Ponti

et al. 2020

Sensors

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The imaging of dielectric targets hidden behind a wall is addressed in this paper. An analytical solver for a fast and accurate computation of the forward scattered field by the targets is proposed, which takes into account all the interactions of the electromagnetic field with the interfaces of the wall. Furthermore, an inversion procedure able to address the full underlying non-linear inverse scattering problem is introduced. This technique exploits a regularizing scheme in Lebesgue spaces in order to reconstruct an image of the hidden targets. Preliminary numerical results are provided in order to initially assess the capabilities of the developed solvers.

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