一种高精度差分格式  

A HIGH ORDER ACCURATE DIFFERENCE SCHEME

作　　者：廖成[1] 赵愉深[1] 林为干[1] 

机构地区：[1]电子科技大学应用物理研究所

出　　处：《计算物理》1997年第2期233-237,共5页Chinese Journal of Computational Physics

基　　金：国家自然科学基金

摘　　要：在微分———Ｔｈｏｍｐｓｏｎ变换结合时域有限差分（ＦＤＴＤ）技术计算复杂目标的电磁散射特性的方法中［１］，差分格式的构造和选取与解的精度存在着密切关系。提出一种新的高精度差分格式。when applying the method of Finite Difference Time domain(FDTD)technique combined with Thompson transformation to calculate electromagnetic scattering problems of complex objects ,the selection of difference schemes has an effect directly on the accuracy of numerical solution.In this paper,a new difference scheme with high order accuracy is presented,numerical results show that Thompson FDTD method can accurately calculate the electromagnetic scattering problems of arbitrary targets.

关 键 词：电磁散射 时域有限差分法 差分格式 

分 类 号：O241.3[理学—计算数学]