Abstract
The generalized function approach for modeling radio wave scattering has been used to develop expressions for the backscatter from rough surfaces and from horizontally stratified media. The research was initially used to model high frequency surface wave radar scattering from a rough ocean surface or across layers of ice covering the ocean. This paper extends the existing theory by assuming an arbitrary dielectric constant for a simple rough surface and by suggesting an approach to model the backscatter from a stratified medium that has a rough surface. When an arbitrary dielectric constant is used for the rough surface, the shape of the scattered field remains the same, but is weaker due to the transmission of energy through the surface. Scatter from rough surfaces and stratified media both can be expressed as the sum of a direct and reflected wave. This form is exploited to understand the scatter from a rough surface over layered media.
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