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粗糙面与目标复合电磁散射的FDTD网络并行计算

发表时间:2009-08-15  浏览量:1371  下载量:660
全部作者: 曾浩,郭立新,李娟
作者单位: 西安电子科技大学理学院
摘 要: 利用基于消息传递平台(message passing interface, MPI)的网络并行时域有限差分(finite difference time domain,FDTD)方法研究一维高斯随机粗糙面与目标的复合电磁散射问题,并借助计算机集群(cluster of workstation, COW)系统对网络并行FDTD算法的可靠性进行方法测试,进而研究该并行算法的并行加速比以及并行效率。结果表明:与传统串行FDTD算法相比,网络并行FDTD算法在解决粗糙面复合电磁散射问题(尤其是掠入射问题)时表现出很大的优越性。
关 键 词: 无线电物理;随机粗糙面电磁散射;并行时域有限差分;消息传递平台;PC集群
Title: Parallel FDTD for EM scattering from random rough surface with target
Author: ZENG Hao, GUO Lixin, LI Juan
Organization: School of Science, Xidian University
Abstract: This paper discusses the electromagnetic (EM) scattering from one�dimensional Gauss random rough surface with target using the parallel finite difference time domain (FDTD) method based on message passing interface (MPI) protocol. The parallel programs have run on the cluster of workstation (COW) parallel computing system including several PC nodes, by which the correctness of the algorithm is verified, the accelerating ratio and computational efficiency of the parallel programs are also researched. Comparing with the conventional serial FDTD method, the introduction of the parallel algorithm shows its priority in the computing time to calculate the composite scattering from random rough surface with target.
Key words: radio physics; random rough surface scattering; parallel finite difference time domain; message passing interface; PC cluster
发表期数: 2009年8月第15期
引用格式: 曾浩,郭立新,李娟. 粗糙面与目标复合电磁散射的FDTD网络并行计算[J]. 中国科技论文在线精品论文,2009,2(15):1566-1572.
 
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