A perfect matched layer method is used to resolve the numerical simulation in free space.
通过完全匹配层方法对截断边界的吸收处理，解决了无限自由空间的计算问题。
The perfect matched layer (PML) technique is used in ADI-FDTD calculation for the first time. The expressions for the exponential time-stepping algorithm in PML are derived.
首次把完全匹配层(PML)边界条件应用到adi FDTD计算中，采用幂指数形式的时间步进算法，推导了相应的迭代公式。
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