摘要
在频域中推导了适用于差分类数值方法的吸收边界条件的构造方法,并通过选取不同参数导出了几种现有的吸收边界条件。在计算了一般形式的吸收边界条件的反射系数之后,提出了一种简单实用的自适应吸收边界条件。
A theory constructing the absorbing boundary condition (ABC) for differential methods in frequency domain is concluded. By choosing adapted parameters, some existing absorbing boundary conditions are derived from the unified form. After the reflection coefficients of the universal absorbing boundary conditions have been calculated out, a simple self-adaptive absorbing boundary condition is presented.
出处
《信息与电子工程》
2003年第1期31-36,共6页
information and electronic engineering
关键词
频域
吸收边界条件
反射系数
自适应
构造方法
计算电磁学
absorbing boundary condition in frequency domain
reflection coefficients
self-adaptive
