Title :
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
fDate :
7/1/2005 12:00:00 AM
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;
Journal_Title :
Antennas and Propagation, IEEE Transactions on
DOI :
10.1109/TAP.2005.850760
