A Simple Empirical Model for the Radar Backscatters of Skewed Sea Surfaces at X- and Ku-Bands

Abstract

This paper presents a new simple empirical model for the backscattering coefficients of skewed sea surfaces. Instead of using a complicated bispectrum function for the backscattering coefficient of a skewed sea surface, a simple modifying term is multiplied to the auto-correlation length of the surface. The unknown constants of the modifying term are obtained by com-paring the simple empirical model with an extensive database for various wind speeds, incidence angles, polarizations, and frequencies. The accuracy of the new model is verified using measurement datasets.