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时域有限差分法常用吸收边界的性能分析
引用本文:于涛,戚宗锋,李志鹏.时域有限差分法常用吸收边界的性能分析[J].海军航空工程学院学报,2016,31(5):506-512.
作者姓名:于涛  戚宗锋  李志鹏
作者单位:电子信息系统复杂电磁环境效应国家重点实验室,河南洛阳 471003,电子信息系统复杂电磁环境效应国家重点实验室,河南洛阳 471003,电子信息系统复杂电磁环境效应国家重点实验室,河南洛阳 471003
摘    要:文章对时域有限差分法常用吸收边界的性能进行了分析,包括 Mur吸收边界、PML(Perfectly Matched Lay. er)、UPML(Uniaxial PML)以及 CPML(Convolution PML)。首先,简要介绍了几种吸收边界的理论基础;然后,根据前面理论进行 Matlab仿真,通过采样二维情况下的高斯源和正弦源激励的电场值,分析比较 4种吸收边界的性能;最后,总结了各种吸收边界的优劣和特点。

关 键 词:Mur吸收边界  PML  UPML  CPML  时域有限差分法

Performances Analysis of Absorbing Boundaries Used Commonly in Finite Difference Time Domain
YU Tao,QI Zongfeng and LI Zhipeng.Performances Analysis of Absorbing Boundaries Used Commonly in Finite Difference Time Domain[J].Journal of Naval Aeronautical Engineering Institute,2016,31(5):506-512.
Authors:YU Tao  QI Zongfeng and LI Zhipeng
Institution:State Key Laboratory of Complex Electromagnetic Environment Effects on Electronics and Information System, Luoyang Henan 471003, China,State Key Laboratory of Complex Electromagnetic Environment Effects on Electronics and Information System, Luoyang Henan 471003, China and State Key Laboratory of Complex Electromagnetic Environment Effects on Electronics and Information System, Luoyang Henan 471003, China
Abstract:The performances of absorbing boundaries used commonly in FDTD, including Mur absorbing boundary, PML,UPML, CPML, were analyzed in this paper. Firstly, the theoretic foundations of this several absorbing boundaries were in.troduced briefly. Then, the performances were simulated using Matlab based on the first part by capturing the electricfields of Gauss source and sine source, respectively. Finally, the characteristics of the four kinds of absorbing boundarieswere summarized.
Keywords:Mur absorbing boundary  PML  UPML  CPML  FDTD
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