Small-slope approximation for electromagnetic wave scattering at the dielectric rough sea surface

Author

Longxiang Linghu ; Zhensen Wu ; Xing Guo ; Haiying Li ; Wangxiao Bin

Author_Institution

Sch. of Sci., Xidian Univ., Xian, China

fYear

2012

fDate

22-26 Oct. 2012

Firstpage

815

Lastpage

818

Abstract

In this paper, the bistatic coefficient of the first-order and the second-order small slope approximation is derived for the dielectric rough surface. Based on the spectral model of Elfouhaily, the scattering coefficient of rough surface is calculated, and the theoretical results are compared between the polarization VV and the polarization HH, the dependence of the backscattering coefficient on the wind speed and the dielectric constant. The results showed that theoretical results are consistent with experimental data. In the case of the backscattering, the result calculated by the small slope approximation is accuracy and the second-order makes the results more accuracy.

Keywords

approximation theory; electromagnetic wave polarisation; electromagnetic wave scattering; permittivity; rough surfaces; Elfouhaily spectral model; backscattering; bistatic coefficient; dielectric constant; dielectric rough sea surface; electromagnetic wave scattering; first-order small slope approximation; polarization HH; polarization VV; second-order small slope approximation; wind speed; Approximation methods; Backscatter; Rough surfaces; Scattering; Sea surface; Surface roughness; Surface waves;

fLanguage

English

Publisher

ieee

Conference_Titel

Antennas, Propagation & EM Theory (ISAPE), 2012 10th International Symposium on

Conference_Location

Xian

Print_ISBN

978-1-4673-1799-3

Type

conf

DOI

10.1109/ISAPE.2012.6408896

Filename

6408896