Padé(1,0)抛物线方程方法求解三维电磁散射问题  

Solving the three-dimensional electromagnetic scattering problems by the Padé(1,0) parabolic equation method

作　　者：孔勐[1] 吴先良[1] 赵方方[1] 

机构地区：[1]安徽大学计算智能与信号处理教育部重点实验室,安徽合肥230039

出　　处：《安徽大学学报（自然科学版）》2008年第2期44-47,共4页Journal of Anhui University(Natural Science Edition)

基　　金：国家自然科学基金资助项目(69971001);安徽省教育厅重点基金资助项目(kj2007A081)

摘　　要：采用Padé(1,0)有理多项式,逼近抛物线方程中的拟微分算子,推导出一种易于计算三维电大目标电磁散射问题的Padé(1,0)抛物线方程算法.关于理想导电立方体电磁散射的算例表明,该算法在保证一定精度的前提下,大大提高了计算效率,节约了内存.With Pade （1,0） rational polynomials used to approximate the pseudo -differential operator of parabolic equation （ PE）, the Pade （ 1,0） PE algorithm was derived. In particular, the algorithm was suitable for computing the scattering from three - dimensional electrically - large objects. The numerical results conducted on the scattering from perfectly conducting cubic demonstrate that the algorithm improved computational efficiency and saved the memory within given accuracy.

关 键 词：抛物线方程算法 散射 Pade(1 0)逼近 

分 类 号：O441[理学—电磁学]