摘要
本文对高阶Ｈｉｇｄｏｎ吸收边界条件的直接实现方法进行了研究．给出了高阶吸收边界条件差分形式系数的具体计算方法和有关参量的选择方法，并对采用这些系数的Ｈｉｇｄｏｎ吸收边界条件进行了时域有限差分（ＦＤＴＤ）数值检验与Ｍｕｒ边界条件进行了比较．结果表明，适当选择有关参量，高阶Ｈｉｇｄｏｎ吸收边界条件在垂直入射和非垂直入射时的计算精度都明显高于Ｍｕｒ边界条件．
A method for the implementation of Higdon absorbing boundary condition(ABC),which processes the higher order operator directly with the help of computer,is proposed in thispaper. The examination results of FDTD for the comparison between the method and the Mur'sABC are also given. It is shown that the method presented has an advantage of obvious higher accuracy for both normal and arbitrary incidence by selecting appropriate parameters.
出处
《电子学报》
EI
CAS
CSCD
北大核心
1997年第5期110-113,共4页
Acta Electronica Sinica
基金
国防科技预研基金
关键词
吸收边界
直接算法
误差估计
微波
Absorbing boundary, Strait forward method, Error estimation
