MMW radar scattering statistics of terrain at near grazing incidence

The statistical behavior of clutter observed near grazing incidence and at 95 GHz is investigated for the specific cases of bare ground, snow cover, a nd far a heterogeneous scene. The bare ground constitutes a homogeneous tar get under homogeneous conditions and the magnitade of the amplitude is Rayl eigh distributed. While the snow cover is a homogeneous target, the conditi ons under which it was observed are heterogeneous, and the Bayes role is em ployed to describe its clutter distribution The Bayes rule integrates varia tions due to signal fading with the underlying variations in the backscatte ring coefficient associated with the heterogeneity. The heterogeneous scene is also successfully described with the Bayes rule.