POLARIMETRIC SCATTERING FROM A LAYER OF RANDOM CLUSTERS OF SMALL SPHEROIDS

Employing the volume integral equation formulation with self-interacti on term for internal fields, the Jones scattering matrix and phase mat rix for random clusters of small spheroids are derived. The mutual coh erent wave interactions among clustered spheroids are included. Cluste ring enhances the internal fields and the scattering amplitude functio n. Substituting newly derived phase matrix into the Mueller matrix in the approach of vector radiative transfer for a layer of random cluste rs of small spheroids, fully polarimetric copolarized and cross-polari zed backscattering are numerically calculated. Clustering effects of a layer of random spheroids are quantitatively illustrated, and the bac kscattering enhancement in several dB order and its functional depende nce on parameters are discussed.