Title :
An Effective Sparse Approximate Inverse Preconditioner for Vector Finite Element Analysis of 3D EM Problems
Author :
Li, S.S. ; Rui, P.L. ; Chen, R.S.
Author_Institution :
Dept. of Electron. Eng., Inst. of Naval Aeronaut. Eng., Shandong
Abstract :
In this paper, we consider a new approach to choose the priori sparsity pattern, and present a pre- and post-filtration technique for sparse approximate inverse (SAI) implementation to alleviate this difficulty. Experiment shows that these tricks are very effective when combined with conjugate gradient (CG) method to solve 3D electromagnetic field (EM) problems
Keywords :
conjugate gradient methods; electromagnetic fields; finite element analysis; vectors; 3D EM problems; 3D electromagnetic field problems; conjugate gradient method; post-filtration technique; pre-filtration technique; sparse approximate inverse preconditioner; vector finite element analysis; Aerospace engineering; Character generation; Convergence; Costs; Electromagnetic fields; Finite element methods; Iterative algorithms; Iterative methods; Linear systems; Sparse matrices;
Conference_Titel :
Antennas and Propagation Society International Symposium 2006, IEEE
Conference_Location :
Albuquerque, NM
Print_ISBN :
1-4244-0123-2
DOI :
10.1109/APS.2006.1710907
