Title :
A modified two-scale scattering model for randomly rough surface. I. The scattering field and the scattering coefficient
Author :
Liu, Ning ; Li, Zong-Qian ; Weng, Hai-Xiao ; Chen, Li-Qing
Author_Institution :
Dept. of Electron. Eng., Tsinghua Univ., Beijing, China
Abstract :
This paper constructs the randomly rough surface via the Fourier series of the surface height function and analyzes the statistical characteristics of the Fourier coefficients. By using a low-pass filter, the surface is split into two parts-Kirchhoff surface and perturbation surface. According to the scattering characteristics of the two kinds of surface, some assumptions and approximations are introduced to obtain the far-zone scattering field and the bistatic scattering coefficient.
Keywords :
Fourier series; electromagnetic wave scattering; rough surfaces; spectral-domain analysis; Fourier coefficients; Fourier series; Kirchhoff surface; bistatic scattering coefficient; far-zone scattering field; low-pass filter; modified two-scale scattering model; perturbation surface; randomly rough surface; spectral domain; statistical characteristics; surface height function; Backscatter; Dielectrics; Integral equations; Predictive models; Radar scattering; Rough surfaces; Scanning probe microscopy; Sea surface; Surface roughness; Surface waves;
Conference_Titel :
Antennas, Propagation and EM Theory, 2000. Proceedings. ISAPE 2000. 5th International Symposium on
Conference_Location :
Beijing, China
Print_ISBN :
0-7803-6377-9
DOI :
10.1109/ISAPE.2000.894806
