Microwave Scattering from a Random Medium Layer with a Random Interface
Abstract:
The problem of electromagnetic wave scattering from a random medium layer with a random interface is considered. The layer has planar boundaries on the average. Assuming that both the random perturbation of the interface and the random fluctuations of permittivity of the medium are small, a first-order perturbation solution to the scattered field is obtained. The bistatic scattering coefficients are calculated and expressed in a compact and meaningful form consisting of various terms that can be related to specific scattering processes. The terms are explained by means of schematic scattering diagrams. The expression for the special case of backscattering includes those terms that contribute to the phenomenon of backscattering enhancement. Finally the results are compared with those of others. The present formalism agrees with the others and allows more physical insight into the scattering processes. Volume scattering, Boundary scattering, Random media, Bistatic scattering.