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

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...

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Bibliographic Details
Published in:Sensors (Basel, Switzerland) Switzerland), 2020-05, Vol.20 (10), p.2865
Main Authors: Fedeli, Alessandro, Pastorino, Matteo, Ponti, Cristina, Randazzo, Andrea, Schettini, Giuseppe
Format: Article
Language:English
Subjects:
Algorithms
Antennas
buried objects
electromagnetic scattering
Fourier transforms
Inverse scattering
microwave imaging
Solvers
through-wall radar
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Summary: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.
ISSN:1424-8220
1424-8220
DOI:10.3390/s20102865