摘要
本文提出了一种用于处理局部媒质介电参数剧烈变化或散射体形状较复杂情况下的２维时域有限差分（ＦＤＴＤ）算法，即准均匀区域划分的ＦＤＴＤ算法。本算法具有相对简单、精度良好、占用内存少、运行时间短等优点，且能较好地模拟复杂形状散射体。作为应用，我们利用本算法计算了几个例子，取得了满意的结果。
A novel 21/2 dimensional finite difference time domain method named as 'quasi-uniform domain division 21/s DFDTD' method was developed in this paper. It was derived from Moghaddam's 21/2 DFDTD method to deal with the scattering problem of complex scatterer(s) and some kinds of paticular media. The main idea of it was dividing the total area quasi-uniformly and field refreshment with variable time and space steps by comparision with Moghaddam's method. It shows more. Moreover, better accuracy was achieved. Another point of it was that it required less computational resources such as storage and running time. Some examples of it were also presented in this paper.
出处
《电波科学学报》
EI
CSCD
1996年第1期21-26,共6页
Chinese Journal of Radio Science
