Numerical simulation of scattering from simple and composite random surfaces
Abstract
Numerical simulation studies of backscattering from onedimensional, statistically known, perfectly conducting random surfaces have been performed. In the intermediate frequency region the angular scattering curves for both the horizontal and vertical polarizations decrease at a slower rate than that predicted by a firstorder small perturbation solution, and the Kirchoff solution always lies between the two polarizations. The level difference between the horizontal and vertical polarization scattering coefficients is smaller than that of the perturbation solution. The application of the twoscale concept in rough surface scattering is limited to twoscale surfaces where one scale satisfied the Kirchoff aproximation and the other the small perturbation assumption such that the two scales dominate scattering in different angular regions. The wavelength filtering concept is applicable to simple surfaces or to each component of a composite surface in the lowfrequency region where scattering is dominated by a narrow band of surface frequency.
 Publication:

Journal of the Optical Society of America A
 Pub Date:
 December 1985
 DOI:
 10.1364/JOSAA.2.002274
 Bibcode:
 1985JOSAA...2.2274F
 Keywords:

 Backscattering;
 Computerized Simulation;
 Random Processes;
 Surface Roughness Effects;
 Wave Scattering;
 Autocorrelation;
 Method Of Moments;
 Polarization (Waves);
 Probability Density Functions;
 Scattering Coefficients;
 Communications and Radar;
 SCATTERING;
 SURFACES