A strategy for the determination of the dielectric permittivity of a lossy soil exploiting GPR surface measurements and a cooperative target |
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| Authors: | Francesco Soldovieri Giancarlo Prisco Raffaele Persico |
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| Institution: | aIstituto per il Rilevamento Elettromagnetico dell'Ambiente (IREA-CNR), Via Diocleziano 328, I-80124 Napoli, Italy;bIstituto per i Beni Archeologici e Monumentali (IBAM-CNR), Via per Monteroni, Campus Universitario, 73100 Lecce, Italy |
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| Abstract: | In this paper we deal with an indirect measure of the dielectric permittivity of the soil starting from GPR surface data collected on a buried “cooperative” target, meant as an object buried on purpose and whose extent is known a-priori. This target is exploited in order to achieve, from its image obtained from a suitable GPR data processing, an indirect measure of the dielectric permittivity of the embedding soil. GPR data processing is based on a linear microwave tomographic approach funded on the Born Approximation. Using this Born approach on two-dimensional inversion tests, we investigate the effect of the soil's electrical conductivity and permittivity on this indirect measure and demonstrate that the electrical field scattered by a spot-like buried object permits an accurate estimation of the soil permittivity even when no information of the soil conductivity is available. |
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| Keywords: | Ground Penetrating Radar Microwave tomography Soil dielectric permittivity determination |
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