A Preconditioned Restarted CMRH for the PEC Target Electromagnetic Scattering Problems

Author

Qing-bo, Li

Author_Institution

Sch. of Phys. & Electron. Electr. Eng., Huaiyin Normal Univ., Huaian, China

fYear

2010

fDate

7-10 May 2010

Firstpage

800

Lastpage

802

Abstract

A multiresolution(MR) preconditioned restarted Changing Minimal Residual method with pivoting strategy(CMRH) is proposed for Multilevel fast multipole algorithm (MLFMA) implementations. The method can efficiently reduce the iteration number required for convergence and require slightly less storage than the Generalized Minimal Residual (GMRES). The radar cross section (RCS) of a metallic sphere and a corner reflector is calculated using combined field integral equation (CFIE), Numerical results indicated that this method is very effective in electromagnetic scattering.

Keywords

electromagnetic wave scattering; integral equations; radar cross-sections; PEC target electromagnetic scattering problems; changing minimal residual method; combined field integral equation; corner reflector; generalized minimal residual; multilevel fast multipole algorithm; multiresolution precondition; pivoting strategy; radar cross section; Convergence; Electromagnetic scattering; Integral equations; Iterative methods; MLFMA; Moment methods; Physics computing; Radar cross section; Research and development; Spatial resolution; CMRH; GMRES; Multilevel fast multipole algorithm; multiresolution precondition;

fLanguage

English

Publisher

ieee

Conference_Titel

Computer Research and Development, 2010 Second International Conference on

Conference_Location

Kuala Lumpur

Print_ISBN

978-0-7695-4043-6

Type

conf

DOI

10.1109/ICCRD.2010.146

Filename

5489487