Wind-induced Backscatter Clustering from Vegetation at W-band

In this paper, the wind-induced backscattering from vegetation at W-band frequencies is studied and characterised through practical validation in a controlled environment. Wide-band analyses of the backscatter clustering from a simple tree show that leaves and trunk play an import role in the generation of diffuse scattering which is the dominant propagation mechanism in random scattering media. Multiple internal reflections may introduce tails in the power delay profile, yielding a radar signature of about twice the dimensions of the tree canopy. Also, wideband signal statics are affected in the presence of wind.