Title :
Comparison of iteration solution methods with multilevel fast multipole algorithm for solving large-scale scattering problems
Author :
Hu, Fangjing ; Nie, Zaiping
Author_Institution :
Sch. of Electron. Eng., Univ. of Electron. Sci. & Technol. of China, Chengdu, China
Abstract :
In this paper, several iterative methods with multilevel fast multipole algorithm (MLFMA) have been applied for solving large-scale scattering problems and compared with each other. The Bi-static RCS of four different targets, involving both open and closed objects, are calculated. Bi-CGSTAB, GMRES and Flexible GMRES (FGMRES) are employed in these simulations, and their performance are demonstrated. Based on these numerical results, suggestions about choosing the appropriate iterative method for different scattering targets are proposed, in order to minimize the solution time.
Keywords :
electromagnetic wave scattering; iterative methods; Bi-CGSTAB; bistatic RCS; flexible GMRES; iteration solution methods; large-scale scattering problems; multilevel fast multipole algorithm; Character generation; Computational complexity; Computational efficiency; Electromagnetic scattering; Integral equations; Iterative algorithms; Iterative methods; Large-scale systems; MLFMA; Switches; Bi-CGSTAB; FGMRES; GMRES; Krylov methods; electromagnetic scattering; multilevel fast multipole algorithm;
Conference_Titel :
Microwave Conference, 2009. APMC 2009. Asia Pacific
Conference_Location :
Singapore
Print_ISBN :
978-1-4244-2801-4
Electronic_ISBN :
978-1-4244-2802-1
DOI :
10.1109/APMC.2009.5384274
