A Modified Scheme of Sparse-matriz Canonical-grid Method for Rough Surface Scattering Using Interpolating Greens Function
A modified scheme of sparse-matrix canonical-grid (SMCG) method for numerical analysis of rough surface scattering is developed in this paper. It uses an interpolating Greens function to replace the Taylor series expansion in the original single-level SMCG method, which becomes intractable for high-order terms. This interpolating approach outpaces the multi-level SMCG method with reduced memory requirement and enhanced parallel computing performance, because it still employs the 2D FFT as the single-level version instead of the 3D FFT in the multilevel revision. The rough surface is modeled by triangular patches to suit RWG basis functions, and Galerkins matching method is adopted to increase the convergence and accuracy compared with the previous point matching techniques. Numerical results show that the present approach is flexible, efficient and reliable.
M. Y. Xia S. W. Huang G. H. Zhang
chool of Electronics Engineering and Computer Science, Peking University, Beijing 100871, China School of Electronics Engineering and Computer Science, Peking University, Beijing 100871, China
国际会议
Progress in Electromagnetics Research Symposium 2007(2007年电磁学研究新进展学术研讨会)(PIERS 2007)
北京
英文
2070-2072
2007-03-26（万方平台首次上网日期，不代表论文的发表时间）