DEPOLARIZATION OF OPTIC WAVE BACKSCATTERING FROM DIELECTRIC ROUGH SURFACES
Keywords:light backscatter, integral equation model, polarization, depolarization
In the study of wave scattering from terrain, ice, sea water, and other features on the earth surfaces, the use of the integral equation method for the backscattering coefficient from the tangential surface field leads to solutions that are valid over a broad range of roughness scale. A model presented in this paper method provides a new method for describing the characteristics of depolarization backscatter from inhomogeneous dielectric rough surfaces. The model developed for the backscatter coefficient from two-dimensional random rough surfaces characterized by the Gaussian surface height spectral density function is based upon the integral equation model. The existing model can not predict the scattering behavior of scatter and rescatter waves from random rough surfaces for ignoring the phase term of Green's function. In this paper we discriminate the scattering coefficient into two terms on the scattering direction and finally compare the model prediction with the measured data. The model prediction results in excellent agreement with the experimental measurements performed with a dual-polarized laser light backscattering measurement system. The difference between the model prediction and the measured data is within a dB
Chin-Yuan Hsieh, Adrian K. Fung, Giuseppe Nesti, A. Sieber and Peter Coppe, A Further Study of the IEM Surface Scattering Model, PP. 901-909, Vol. 35, N0. 4, IEEE Transactions On Geoscience and Remote Sensing, July 1997.
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