时域有限差分法中几种吸收边界条件的比较与数值验证

Comparison between some absorbing boundary conditions and numerical validation

本文对时域有限差分法（FDTD）中的Mur近似吸收边界条件、超吸收技术、PML技术等有影响的吸收边界条件进行了比较，进行了数值试验，分析和总结了几点结论。

A comparison between some important ABC's in the finite-difference time-domin(FDTD) tech-nique has been made in this paper. These ABC's include Mur's second-order absorbing boundary condition, su-perabsorption technique and perfectly matched layer(PML) technique. Numerical tests are made. Some sugges-tions and conclusion are given.