Titre :
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Simple modelling of radar backsattering coefficient over a bare soil : variation with incidence angle, frequency and polariztion
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Auteurs :
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I. Champion
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Type de document :
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article/chapitre/communication
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Année de publication :
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1996
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Format :
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783-800
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Langues:
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= Anglais
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Mots-clés:
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ALGORITHME
;
HUMIDITE DU SOL
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Résumé :
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As a basics for inversion algorithms, there is a need for the developpement of simple backscattering soil models which can account for the variations of incidence angle observed in the same picture or in multiangle systems. A correction factor for the variations of incidence angle is therefore coupled with a classical linear model of the variation of backscattering coefficient with surface soil moisture in a four- parameter model. The correction factor is based on the cosine-typr behaviour of the backscattering coefficient as a function of incidence angle, which is observed for rough agricultural surface.
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Source :
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Int. J. remote sensing, vol.17, n°4
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