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Article Dans Une Revue IEEE Transactions on Geoscience and Remote Sensing Année : 2021

A Ground Penetrating Radar Imaging Approach for a Heterogeneous Subsoil With a Vertical Permittivity Gradient

Résumé

The article presents an imaging approach for ground penetrating radar prospecting over a heterogeneous background soil characterized by a dielectric permittivity variation along depth. The proposed approach is based on a linear model of the electromagnetic scattering phenomenon, where the soil inhomogeneity in the reference scenario is accounted for by introducing an equivalent permittivity function. Such a function notably simplifies the computation of the kernel of the relevant linear integral equation to be inverted. Then, the data inversion is carried out in a regularized way by resorting to the truncated singular value decomposition scheme. A procedure for estimating the equivalent permittivity function, typically unknown in practical situations, is also proposed. Reconstruction results achieved from full-wave simulated data and real data collected in a controlled test site are provided to demonstrate the effectiveness and the reliability of the proposed imaging approach.

Domaines

Génie civil
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Dates et versions

hal-04283343 , version 1 (13-11-2023)

Identifiants

Citer

Gianluca Gennarelli, Ilaria Catapano, Xavier Dérobert, Francesco Soldovieri. A Ground Penetrating Radar Imaging Approach for a Heterogeneous Subsoil With a Vertical Permittivity Gradient. IEEE Transactions on Geoscience and Remote Sensing, 2021, 59 (7), pp.5698-5710. ⟨10.1109/TGRS.2020.3024831⟩. ⟨hal-04283343⟩
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