%0 Journal Article
%T Analysis of the Numerical Dispersion of Higher Order ADI-FDTD<br>高阶ADI-FDTD算法的数值色散分析
%A Xu Li-jun
%A Yuan Nai-chang
%A <br>徐利军
%A 袁乃昌
%J 电子与信息学报
%D 2005
%I 
%X In this paper, a new higher order Alternating Direction Implicit Finite-Difference Time-Domain (ADI-FDTD) formulation in particular, a second-order-in-time, fourth-order-in-space AD-FDTD method is presented for the first time. At the same time ,the unconditional stability of the higher order ADI-FDTD formulation is analytically proved. By analysis of the amplification factors, the numerical dispersion relation is derived. In addition, the numerical dispersion errors are investigated. Finally numerical results indicate that the higher order ADI-FDTD has s better accuracy compared to the ADI-FDTD method.
%K Higher order ADI-FDTD methods
%K Numerical dispersion<br>高阶ADI-FDTD算法
%K 数值色散
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=1319827C0C74AAE8D654BEA21B7F54D3&jid=EFC0377B03BD8D0EF4BBB548AC5F739A&aid=ED43E29B99A3559F&yid=2DD7160C83D0ACED&vid=DB817633AA4F79B9&iid=F3090AE9B60B7ED1&sid=3DE6111EA92D7986&eid=EDB832473B2BA2DF&journal_id=1009-5896&journal_name=电子与信息学报&referenced_num=0&reference_num=12