A Simple Model for Scattering Coefficients of Vegetation Canopies

A new simple microwave backward and forward scattering model for vegetation canopies is developed in this study. This simple model has only ten input parameters for a natural earth surface, which is modeled as a two-layer structure comprising a vegetation layer and a ground layer. The computation results of this model are compared with the experimental measurements, which were obtained by a ground-based scatterometer and the NASA/JPL air-borne synthetic aperture radar (SAR) system. It is found that the scattering model agrees well with the experimental data, even though the model uses only ten input parameters.