Emissivities of Random Rough Surface over Layered Media
DOI: 10.1109/IGARSS.2008.4780147 Conference: IEEE International Geoscience & Remote Sensing Symposium, IGARSS 2008, July 8-11, 2008, Boston, Massachusetts, USA, Proceedings
Rough surface scattering effects are important problem for solving emission in microwave remote sensing. Stochastically the surface length should be infinite to simulate random rough surface scattering which is possible for analytical method but not for numerical method. Generally there are two approximations to simulate real life: the tapered wave method and periodic boundary condition. Both are valid for random rough surface scattering if convergence is shown with increase of surface length for the tapered wave and if the period is large enough for periodic boundary condition. In this paper we compare the results for the four Stokes parameters between periodic boundary conditions and the tapered wave approach.
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