Preconditioners for adaptive integral method implementation

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 accel...

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Bibliographic Details
Published in:IEEE transactions on antennas and propagation 2005-07, Vol.53 (7), p.2346-2350
Main Authors: EWE, Wei-Bin, LI, Le-Wei, QUN WU, LEONG, Mook-Seng
Format: Article
Language:English
Subjects:
Acceleration
Antennas
Applied sciences
Blocking
Character generation
Computational complexity
Computational efficiency
Convergence
Convergence of numerical methods
Electromagnetic radiation
Electromagnetic scattering
Exact sciences and technology
fast solvers
Integral equations
Integrals
Iterative methods
Magnetic fields
Mathematical models
Radiocommunications
Radiowave propagation
Solvers
Telecommunications
Telecommunications and information theory
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Summary: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.
ISSN:0018-926X
1558-2221
DOI:10.1109/TAP.2005.850760