Dielectric Constant Modelling with Soil–Air Composition and Its Effect on Sar Radar Signal Backscattered over Soil Surface

The objective of this paper is to present the contribution of a new dielectric constant characterisation for the modelling of radar backscattering behaviour. Our analysis is based on a large number of radar measurements acquired during different experimental campaigns (Orgeval'94, Pays de Caux&...

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Autores principales: Zribi, Mehrez, Le Morvan, Aurélie, Baghdadi, Nicolas
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Molecular Diversity Preservation International (MDPI) 2008
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3787417/
https://www.ncbi.nlm.nih.gov/pubmed/27873901
http://dx.doi.org/10.3390/s8116810
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author Zribi, Mehrez
Le Morvan, Aurélie
Baghdadi, Nicolas
author_facet Zribi, Mehrez
Le Morvan, Aurélie
Baghdadi, Nicolas
author_sort Zribi, Mehrez
collection PubMed
description The objective of this paper is to present the contribution of a new dielectric constant characterisation for the modelling of radar backscattering behaviour. Our analysis is based on a large number of radar measurements acquired during different experimental campaigns (Orgeval'94, Pays de Caux'98, 99). We propose a dielectric constant model, based on the combination of contributions from both soil and air fractions. This modelling clearly reveals the joint influence of the air and soil phases, in backscattering measurements over rough surfaces with large clods. A relationship is established between the soil fraction and soil roughness, using the Integral Equation Model (IEM), fitted to real radar data. Finally, the influence of the air fraction on the linear relationship between moisture and the backscattered radar signal is discussed.
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spelling pubmed-37874172013-10-17 Dielectric Constant Modelling with Soil–Air Composition and Its Effect on Sar Radar Signal Backscattered over Soil Surface Zribi, Mehrez Le Morvan, Aurélie Baghdadi, Nicolas Sensors (Basel) Article The objective of this paper is to present the contribution of a new dielectric constant characterisation for the modelling of radar backscattering behaviour. Our analysis is based on a large number of radar measurements acquired during different experimental campaigns (Orgeval'94, Pays de Caux'98, 99). We propose a dielectric constant model, based on the combination of contributions from both soil and air fractions. This modelling clearly reveals the joint influence of the air and soil phases, in backscattering measurements over rough surfaces with large clods. A relationship is established between the soil fraction and soil roughness, using the Integral Equation Model (IEM), fitted to real radar data. Finally, the influence of the air fraction on the linear relationship between moisture and the backscattered radar signal is discussed. Molecular Diversity Preservation International (MDPI) 2008-11-01 /pmc/articles/PMC3787417/ /pubmed/27873901 http://dx.doi.org/10.3390/s8116810 Text en © 2008 by the authors; licensee Molecular Diversity Preservation International, Basel, Switzerland. This article is an open-access article distributed under the terms and conditions of the Creative Commons Attribution license (http://creativecommons.org/licenses/by/3.0/).
spellingShingle Article
Zribi, Mehrez
Le Morvan, Aurélie
Baghdadi, Nicolas
Dielectric Constant Modelling with Soil–Air Composition and Its Effect on Sar Radar Signal Backscattered over Soil Surface
title Dielectric Constant Modelling with Soil–Air Composition and Its Effect on Sar Radar Signal Backscattered over Soil Surface
title_full Dielectric Constant Modelling with Soil–Air Composition and Its Effect on Sar Radar Signal Backscattered over Soil Surface
title_fullStr Dielectric Constant Modelling with Soil–Air Composition and Its Effect on Sar Radar Signal Backscattered over Soil Surface
title_full_unstemmed Dielectric Constant Modelling with Soil–Air Composition and Its Effect on Sar Radar Signal Backscattered over Soil Surface
title_short Dielectric Constant Modelling with Soil–Air Composition and Its Effect on Sar Radar Signal Backscattered over Soil Surface
title_sort dielectric constant modelling with soil–air composition and its effect on sar radar signal backscattered over soil surface
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3787417/
https://www.ncbi.nlm.nih.gov/pubmed/27873901
http://dx.doi.org/10.3390/s8116810
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AT baghdadinicolas dielectricconstantmodellingwithsoilaircompositionanditseffectonsarradarsignalbackscatteredoversoilsurface

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