An Efficient Simulated Sea Slope Model for Backscattering from a Non-Gaussian Sea Surface

Based on the double superimposition model, a sea slope model is obtained on the basis of the generated oceanic surface instead of being assumed as a Gaussian distribution model. Then, a summation formula of the backscattering coefficient is derived from the Bass-Fuks two-scale model and its application is extended to the non-Gaussian oceanic surface with the help of simulated sea slopes, which can adequately reflect the non-Gaussian configuration of the sea surface. Finally, this scattering model is employed to describe the backscattering configuration of sea surfaces in different sea states and wind directions, and is confirmed by several numerical examples.