Title :
Three-Dimensional Weak-Form DRGMRES-NUFFT for Volume Integral Equations
Author :
Rui, P.L. ; Li, S.S. ; Chen, R.S.
Author_Institution :
Dept. of Commun. Eng., Nanjing Univ. of Sci. & Technol.
Abstract :
In this paper, the deflated restarting GMRES (DRGMRES) iterative method, combined with the nonuniform FFT (NUFFT) algorithms, is first proposed to solve 3D weak-form volume electric field integral equations in electromagnetic scattering problems. Numerical experiments for problems with both large and small regions are conducted, which shows the advantage of the NUFFT over the conventional FFT methods and the efficiency of DRGMRES for improving convergence of the standard GMRES
Keywords :
electric field integral equations; electromagnetic wave scattering; fast Fourier transforms; iterative methods; deflated restarting GMRES iterative method; electromagnetic scattering problems; nonuniform FFT algorithm; three-dimensional weak-form DRGMRES-NUFFT; volume electric field integral equations; Aerospace engineering; Convergence; Dielectrics; Electromagnetic scattering; Fast Fourier transforms; Integral equations; Iterative algorithms; Iterative methods; Nonuniform sampling; Shape;
Conference_Titel :
Antennas and Propagation Society International Symposium 2006, IEEE
Conference_Location :
Albuquerque, NM
Print_ISBN :
1-4244-0123-2
DOI :
10.1109/APS.2006.1711503
