2-D TM GPR Imaging Through a Multiscaling Multifrequency Approach in Lp Spaces

An iterative multiscaling approach for solving the electromagnetic inverse scattering problem related to the imaging of shallow subsurface targets with the ground-penetrating radar (GPR) is proposed. The approach combines the zooming properties of the multiscaling technique with the reconstruction c...

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Bibliographic Details
Published in:IEEE transactions on geoscience and remote sensing 2021-12, Vol.59 (12), p.10011-10021
Main Authors: Salucci, Marco, Estatico, Claudio, Fedeli, Alessandro, Oliveri, Giacomo, Pastorino, Matteo, Povoli, Sergio, Randazzo, Andrea, Rocca, Paolo
Format: Article
Language:English
Subjects:
Aquatic reptiles
Banach spaces
Buried object detection
Dielectrics
electromagnetic scattering inverse problems
Electromagnetics
Ground penetrating radar
ground-penetrating radar (GPR)
Image reconstruction
Imaging techniques
Inverse problems
Inverse scattering
Iterative methods
Pattern recognition
Properties
Radar
Radar imaging
Regularization
Zooming
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Summary:An iterative multiscaling approach for solving the electromagnetic inverse scattering problem related to the imaging of shallow subsurface targets with the ground-penetrating radar (GPR) is proposed. The approach combines the zooming properties of the multiscaling technique with the reconstruction capabilities of an Inexact-Newton (IN) method developed in L^{p} spaces. It is based on multifrequency processing that allows one to face the ill-posedness of the inverse scattering problem by exploiting the regularization properties of a truncated Landweber (LW) method. Experimental data, extracted from radargrams obtained by the GPR in a real situation, are used for validation. The reconstruction results are also compared with those from competitive alternatives, such as a standard IN method or a state-of-the-art multifrequency Conjugate Gradient (CG)-based approach.
ISSN:0196-2892
1558-0644
DOI:10.1109/TGRS.2021.3049423