Title :
A Preconditioned Restarted CMRH for the PEC Target Electromagnetic Scattering Problems
Author_Institution :
Sch. of Phys. & Electron. Electr. Eng., Huaiyin Normal Univ., Huaian, China
Abstract :
A multiresolution(MR) preconditioned restarted Changing Minimal Residual method with pivoting strategy(CMRH) is proposed for Multilevel fast multipole algorithm (MLFMA) implementations. The method can efficiently reduce the iteration number required for convergence and require slightly less storage than the Generalized Minimal Residual (GMRES). The radar cross section (RCS) of a metallic sphere and a corner reflector is calculated using combined field integral equation (CFIE), Numerical results indicated that this method is very effective in electromagnetic scattering.
Keywords :
electromagnetic wave scattering; integral equations; radar cross-sections; PEC target electromagnetic scattering problems; changing minimal residual method; combined field integral equation; corner reflector; generalized minimal residual; multilevel fast multipole algorithm; multiresolution precondition; pivoting strategy; radar cross section; Convergence; Electromagnetic scattering; Integral equations; Iterative methods; MLFMA; Moment methods; Physics computing; Radar cross section; Research and development; Spatial resolution; CMRH; GMRES; Multilevel fast multipole algorithm; multiresolution precondition;
Conference_Titel :
Computer Research and Development, 2010 Second International Conference on
Conference_Location :
Kuala Lumpur
Print_ISBN :
978-0-7695-4043-6
DOI :
10.1109/ICCRD.2010.146
