Calderon Multiplicative Preconditioner for Acceleration of Fast Direction Multilevel Algorithm for Scattering Problem

摘要：

In this paper, a new method called fast directional multilevel algorithm is preconditioned by an efficient Calderon multiplicative preconditioner (CMP) for three-dimensional (3-D) electromagnetic problems. The new algorithm does not require the implementation of multipole expansions of the Greens function but based only on kernel evaluations. Combined with the Caldron identities of the CMP, the new algorithm has a fast convergence rate of iterative solvers and is stable at low frequency for the electrical field integral equation (EFIE) solutions. The numerical results demonstrate that the CMP preconditioned FDMA leads to significant reduction of both the iteration number and the CPU time for RCS calculation.

作者: H. Chen J.Zhu R. S. Chen Z.H.Fan

作者单位: Department of Communication Engineering, Nanjing University of Science and Technology, Nanjing, China, 210094

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: 240-243

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）