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一维ADI-FDTD方法的数值色散分析 被引量:1

Analysis on Numerical Dispersion of One-dimensional ADI-FDTD Method
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摘要 给出了交替变向隐式时域有限差分法(ADI-FDTD)的一维差分格式,利用增长矩阵推导了数值色散关系式。将其与过去研究中给出的色散关系式进行了比较。利用牛顿迭代法对其进行了全面的分析,发现了时间步长的选取与网格、色散误差的大小有一定的联系。 The difference equations of one dimensional ADI-FDTD method are presented and the numernical dispersion relation is derived by amplification matrix method.The proposed analytical relation for 1-D ADI-FDTD is compared with the relation in the previous works.It analyses the relation by Newton's iteration method,which shows the select of the time step has a relation with the mesh size and dispersion error.
出处 《中国民航学院学报》 2005年第2期38-41,共4页 Journal of Civil Aviation University of China
基金 中国博士后科学基金项目(2003033028) 国家自然科学基金项目(60472125)
关键词 时域有限差分法 交替变向隐式时域有限差分法 数值色散 牛顿迭代 色散误差 FDTD method ADI-FDTD method numerical dispersion Newton's iteration method dispersion error
  • 相关文献

参考文献8

  • 1Taflove A.Computational Electrodynamics[M].Norwood,MA:Artech House, 1995.
  • 2Namiki T.A new FDTD algorithm based on alternating direction implicit method [ J ]. IEEE Trans. Microwave Theory Tech, 1999,47(10) :2003-2007.
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  • 6党涛,郑宏兴.关于二维ADI-FDTD方法的数值色散分析[J].中国民航学院学报,2004,22(2):42-46. 被引量:2
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二级参考文献16

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共引文献1

同被引文献8

  • 1徐利军,袁乃昌.高阶ADI-FDTD算法的数值色散分析[J].电子与信息学报,2005,27(10):1662-1665. 被引量:2
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  • 7PEREDA J A,VIELVA L A,VEGAS A,et al. Analyzingthe stability of the FDTD technique by combining the VonNeumann method with the Routh.Hurwitz criterion [J]. IEEETransactions on Microwave Theory and Techniques,2001,49(2):377-381.
  • 8党涛,郑宏兴.关于二维ADI-FDTD方法的数值色散分析[J].中国民航学院学报,2004,22(2):42-46. 被引量:2

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