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Rough Surfaces


Asymptotic methods allowing considering a large set of surface roughness scales have been developed. Three parameters are used to characterize the surface:


Three kinds of models have been developed allowing considering a large number of cases:


Scattering function Kirchhoff approximation Scattering function Small Slope Approximation technique (SSA)
Scattering function
Kirchhoff  approximation1st and 2nd ordre
Scattering function
Small Slope Approximation technique (SSA)
compared to the Kirchhoff approximation


(full texts available in the publications section)

Y. Beniguel, G. Berginc, "Une revue des techniques utilisees pour le calcul de la diffraction par les surfaces rugueuses aleatoires", Journees d'etudes sur la propagation electromagnetique dans l'atmosphere : du decametrique a l'angstrom, Rennes, 2002.

G. Berginc, Y. Beniguel, B. Chevalier, "Small slope approximation method : Higher order contributions for scattering from conducting 3D surfaces", SPIE99 Proceedings, Denver, 1999


Last Updated on Tuesday, 27 April 2010 16:46