Scattering from an object above a rough surface using the Extended PILE method hybridized with PO approximation

Author

Kouali, Mohammad ; Bourlier, Christophe ; Kubické, Gildas

Author_Institution

IETR Lab., Univ. de Nantes, Nantes, France

fYear

2012

fDate

8-14 July 2012

Firstpage

1

Lastpage

2

Abstract

A new hybrid method which combines the E-PILE (Extended Propagation-Inside-Layer Expansion) method and the Physical Optics approximation (PO), is developed for computing the electromagnetic scattering from an object above a rough surface for a three-dimensional problem. Such a 3-D problem involves a large number of unknowns and can not be solved easily with a conventional method of moments (MoM) by using a direct LU inversion. Thus, a hybridization between the E-PILE and PO reduces significantly the memory requirements and CPU time.

Keywords

electromagnetic wave scattering; method of moments; physical optics; rough surfaces; 3D problem; E-PILE; MoM; PO approximation; direct LU inversion; electromagnetic scattering computing; extended PILE method; extended propagation-inside-layer expansion method; method of moments; physical optics approximation; rough surface; three-dimensional problem; Approximation methods; Electromagnetic scattering; Moment methods; Rough surfaces; Surface impedance; Surface roughness;

fLanguage

English

Publisher

ieee

Conference_Titel

Antennas and Propagation Society International Symposium (APSURSI), 2012 IEEE

Conference_Location

Chicago, IL

ISSN

1522-3965

Print_ISBN

978-1-4673-0461-0

Type

conf

DOI

10.1109/APS.2012.6348896

Filename

6348896