An improved implementation of the perfectly matched layer (PML) is developed for the Transmission Line Modelling (TLM) method based on a mapping of the symmetrical condensed node (SCN) to an analytically extended geometric space. By mapping the TLM node, a medium – circuit equivalence is developed which maps transmission line parameters from real to complex domain. This consequently modifies the TLM scatter-connect process. The PML implementation is demonstrated for canonical cases where it is shown to have a comparable absorption performance and a significantly improved temporal stability relative to previously published TLM-PML formulations.

中文翻译：

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在TLM中有效实现PML的SCN的复杂域映射

基于对称压缩节点（SCN）到解析扩展的几何空间的映射，为传输线建模（TLM）方法开发了完全匹配层（PML）的改进实现。通过映射TLM节点，开发了一种中等电路等效性，可将传输线参数从实域映射到复杂域。因此，这修改了TLM分散连接过程。相对于以前发布的TLM-PML配方，PML实施在典型情况下得到了证明，具有典型的可比吸收性能，并且时间稳定性显着提高。