Simulation of scattering from soil surfaces using single integral equation and two-grid scheme

Author

Wang, M.M. ; Wu, Z.X. ; Xia, M.Y.

Author_Institution

Dept. of Electron., Peking Univ., Beijing, China

fYear

2004

fDate

1-4 Nov. 2004

Firstpage

64

Lastpage

67

Abstract

An efficient algorithm for simulation of microwave scattering from rough soil surfaces is proposed. It entails the use of a single integral equation and a two-grid scheme. The single integral equation approach reduces the number of unknowns by a factor of two or three compared with using coupled equations and admits a faster iterative solution. The two-grid scheme achieves efficiency using coarse grids and maintains accuracy using dense grids. Numerical examples are provided for random rough soil surfaces with exponential statistical properties.

Keywords

electromagnetic wave scattering; integral equations; iterative methods; microwave propagation; rough surfaces; soil; statistical analysis; accuracy; coarse grids; coupled equations; dense grids; efficiency; exponential statistical properties; integral equation; iterative solution; microwave scattering; rough soil surfaces; two-grid scheme; Current; Electromagnetic scattering; Integral equations; Iterative methods; Moisture; Oceans; Rough surfaces; Sea surface; Soil; Surface roughness;

fLanguage

English

Publisher

ieee

Conference_Titel

Computational Electromagnetics and Its Applications, 2004. Proceedings. ICCEA 2004. 2004 3rd International Conference on

Print_ISBN

0-7803-8562-4

Type

conf

DOI

10.1109/ICCEA.2004.1459290

Filename

1459290