A Modified Spectral Shift Preconditiner for Electromagnetic scattering of Complex Objects

摘要：

Im order to efficiently solve large dense complex linear systems arising from electric field integral equations (EFIE) formulation of electromagnetic scattering problems, the multilevel fast muhipole algorithm (MLFMA) is used to accelerate (he matrixvector product operations. This paper presents a modified spectral shift preconditiener, which is combined with other precondhioner can greatly improve the convergence of restart GMRES iterative method for large dense complex linear systems. Numerical experiments demonstrate that the modified spectral shift preconditioner combined with other preconditioner is very effective and can reduce the iteration number and the computational time significantly

作者: X.Q. Hu M..Chen R.S.Chen D.Z. Ding

作者单位: Department of Communication Engineering Nanjing University of Science and Technology, China

会议类型: 国际会议

会议名称: 2010 International Conference on Microwave and Millimeter Wave Technology(2010国际微波与毫米波技术会议 ICMMT2010)

会议地点: 成都

会议语种:英文

页码: 610-613

在线出版日期: 2010-05-08（万方平台首次上网日期，不代表论文的发表时间）