Preconditioners for adaptive integral method implementation

Author

EWE, Wei-Bin ; Li, Le-Wei ; Wu, Qun ; Leong, Mook-Seng

Author_Institution

Dept. of Electr. & Comput. Eng., Nat. Univ. of Singapore, Singapore

Volume

53

Issue

7

fYear

2005

fDate

7/1/2005 12:00:00 AM

Firstpage

2346

Lastpage

2350

Abstract

The performance of three preconditioners, namely, diagonal, block-diagonal, and incomplete lower-upper preconditioners, are investigated in this communication for increasing the efficiency of iterative solvers in adaptive integral method implementation. These preconditioners are implemented to accelerate the solution of electromagnetic scattering problems in a comparative study. Numerical results have shown some improvements in convergence rate, when these preconditioners are employed.

Keywords

convergence of numerical methods; electromagnetic wave scattering; integral equations; iterative methods; adaptive integral method implementation; block-diagonal preconditioner; convergence of numerical method; diagonal preconditioner; electromagnetic scattering problem; incomplete lower-upper preconditioner; iterative solver; Acceleration; Character generation; Computational complexity; Computational efficiency; Convergence of numerical methods; Electromagnetic radiation; Electromagnetic scattering; Integral equations; Iterative methods; Magnetic fields; Convergence of numerical methods; electromagnetic scattering; fast solvers;

fLanguage

English

Journal_Title

Antennas and Propagation, IEEE Transactions on

Publisher

ieee

ISSN

0018-926X

Type

jour

DOI

10.1109/TAP.2005.850760

Filename

1461567