Wave diffraction by rough interfaces in an arbitrary plane-layered medium

The problem of electromagnetic wave scattering by a slightly rough interfac e in an arbitrarily layered medium is solved by a small-perturbation method . The bistatic amplitude of scattering as well as the scattering cross sect ions for statistically rough surfaces are calculated for linear polarized w aves. Along with scattering into up-going waves in a homogeneous medium and scattering cross sections in down-going waves into a layered medium, scatt ering amplitudes from a rough interface in the arbitrarily layered medium a re obtained.