A new approximation to three-dimensional electromagnetic scattering

Author

Song, Lin-Ping ; Liu, Qing Huo

Author_Institution

Dept. of Electr. & Comput. Eng., Duke Univ., Durham, NC, USA

Volume

2

Issue

2

fYear

2005

fDate

4/1/2005 12:00:00 AM

Firstpage

238

Lastpage

242

Abstract

We introduce a new source-dependent but diagonal scattering tensor to approximate the electromagnetic fields internal to a scatterer. The approximate analytical expressions for the three diagonal scattering components are derived. Numerical tests show that the new approximation has favorable accuracy and wider range of applicability than the existing approximations such as the widely used extended Born approximation and the quasi-analytical approximation.

Keywords

Fourier transforms; electromagnetic wave scattering; geophysical techniques; integral equations; remote sensing; tensors; 3D electromagnetic scattering; diagonal scattering tensor; diagonal tensor approximation; extended Born approximation; fast Fourier transform; integral equation; quasianalytical approximation; remote sensing; Approximation methods; Electromagnetic fields; Electromagnetic scattering; Fast Fourier transforms; Integral equations; Inverse problems; Magnetic analysis; Permittivity; Tensile stress; Testing; Diagonal tensor approximation (DTA); fast Fourier transform (FFT); integral equation;

fLanguage

English

Journal_Title

Geoscience and Remote Sensing Letters, IEEE

Publisher

ieee

ISSN

1545-598X

Type

jour

DOI

10.1109/LGRS.2005.846836

Filename

1420313