Active remote sensing of random media

Abstract

Analytical results for the bistatic scattering coefficients and the backscattering cross sections have been derived for active remote sensing of earth terrain with the model of bounded random media which accounts for volume-scattering effects. It is found that as a result of the effect of the second boundary, the horizontally polarized return σhh can be greater than the vertically polarized return σvv, whereas for a half-space random medium σvv is always greater than σhh. We illustrate by matching the theoretical results with experimental data collected from vegetation field.