基于laguerre的高效二维FDTD方法的数值色散分析

2015 7th Asia-Pacific Conference on Environmental Electromagnetics (CEEM) Pub Date : 2015-11-01 DOI:10.1109/CEEM.2015.7368657

Duan Yantao, Qiu Shi, Shi Lihua, Chen Bin

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摘要

本文给出了高效二维拉盖尔时域有限差分法(FDTD)的数值色散分析。推导了数值色散关系，研究了数值色散误差。结果表明，通过选择合适的采样点密度和时间尺度因子，可以保证数值色散误差在一定精度范围内。

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Numerical dispersion analysis for efficient 2-D Laguerre-based FDTD method

This paper presents the numerical dispersion analysis of the efficient two-dimensional Laguerre-based finite-difference time-domain (FDTD) method. The numerical dispersion relation is derived and the numerical dispersion errors are investigated. The results indicate that, by choosing the suitable values of the sampling point density in space domain and the time-scale factor, one can ensure the numerical dispersion error within certain accuracy.

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2015 7th Asia-Pacific Conference on Environmental Electromagnetics (CEEM)

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