|Table of Contents|

Analysis of electromagnetic scattering by parallel SAI and multi-step spectral preconditioners

《南京理工大学学报》(自然科学版)[ISSN:1005-9830/CN:32-1397/N]

Issue:
2015年06期
Page:
727-
Research Field:
Publishing date:

Info

Title:
Analysis of electromagnetic scattering by parallel SAI and multi-step spectral preconditioners
Author(s):
Liu XingminDing DazhiLiu LuLi Zhaolong
School of Electronic Engineering and Optoelectronic Technology,NUST,Nanjing 210094,China
Keywords:
multilevel fast multipole method parallel sparse approximate inverse preconditioner multi-step spectral preconditioner electromagnetic scattering
PACS:
TM15
DOI:
-
Abstract:
To solve the problem that the sparse approximate inverse(SAI)preconditioner based on multilevel fast multipole method can't convergent for some electromagnetic scattering of open complex structures,the multi-step spectral preconditioning method is proposed by combining the SAI preconditioner with the spectral preconditioner.The analysis of electromagnetic scattering characteristics of complex model structures shows that the calculation time of the multi-step spectral preconditioner is less than that of the SAI preconditioner.The correctness and effectiveness of the proposed preconditioner are verified.

References:

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Last Update: 2015-12-31