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首页> 外文期刊>Computer physics communications >Addendum to: “A FDTD analysis on magnetized plasma of Epstein distribution and reflection calculation” [Computer Physics Communications 180 (1) (2009) 55–60] A short comment on the equivalence of the shift-operator FDTD method and the bilinear frequency approximation technique for modeling dispersive electromagnetic applications
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Addendum to: “A FDTD analysis on magnetized plasma of Epstein distribution and reflection calculation” [Computer Physics Communications 180 (1) (2009) 55–60] A short comment on the equivalence of the shift-operator FDTD method and the bilinear frequency approximation technique for modeling dispersive electromagnetic applications

机译:附录:“对爱泼斯坦分布的磁化等离子体的FDTD分析和反射计算” [计算机物理通信180(1)(2009)55–60]简述了移位算子FDTD方法和双线性频率近似的等效性色散电磁应用建模技术

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摘要

Recently, the shift operator finite difference time domain (SO-FDTD) method has been introduced by Yang [Computer Physics Communications 180 (1) (2009) 55–60] for modeling dispersive electromagnetic applications. This letter discuss the equivalence of this scheme and the well-known bilinear frequency approximation technique used in the field of digital signal processing. Although the SO-FDTD scheme looks different at first glance, it has been observed that it is fully equivalent to the bilinear frequency approximation technique. Consequently, the SO-FDTD scheme is indeed a bilinear transform operation which is unfortunately not cited by the author
机译:最近,Yang [Computer Physics Communications 180(1)(2009)55–60]引入了移位算子有限差分时域(SO-FDTD)方法,用于对分散电磁应用进行建模。这封信讨论了该方案的等效性以及在数字信号处理领域中使用的众所周知的双线性频率近似技术。尽管乍一看SO-FDTD方案看起来有所不同,但已经观察到它完全等效于双线性频率近似技术。因此,SO-FDTD方案确实是一个双线性变换操作,不幸的是作者没有引用它。

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