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混合有限元与矩量法模拟散射问题的预处理技术
  • ISSN号：1001-0548
  • 期刊名称：《电子科技大学学报》
  • 时间：0
  • 分类：O242[理学—计算数学;理学—数学] O441[理学—电磁学;理学—物理]
  • 作者机构：[1]电子科技大学数学科学学院,成都611731, [2]中国西南电子技术研究所,成都610036
  • 相关基金：基金项目：国家自然科学基金（60973015）.四川省科技研究项（2009SPT-1）
作者： 任志刚[1,2], 黄廷祝[1], 李良[1]
关键词： 有限元, 迭代法, 矩量法, 预处理, 散射, fem, iterative methods, mom, preconditioning, scattering
中文摘要：

混合矩量法与有限元法模拟散射问题可以归结为一个复线性系统的求解，该复线性系统的迭代求解十分困难，预条件技术恰恰可以提高复线性系统迭代求解的收敛速率。针对混合矩量法与有限元法模拟散射问题得到的复线性系统，给出了几种预条件子，数值例子表明给出的预条件子提高了此复线性系统迭代法求解时的收敛速率。

英文摘要：

Complex linear systems will be generated when scattering problems are simulated by hybrid FEM-MoM methods, such complex linear systems are difficult to solve with iterative methods alone, so preconditioning technique is usually applied to accelerate the convergence rate of iterative methods. For such complex linear systems, several preconditioners are proposed in this paper. Numerical results show the effectiveness of the proposed preconditioning technique.

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期刊信息
  • 《电子科技大学学报》
  • 北大核心期刊（2011版）
  • 主管单位:国家教育部
  • 主办单位:电子科技大学
  • 主编：周小佳
  • 地址：成都市成华区建设北路二段四号
  • 邮编：610054
  • 邮箱：xuebao@uestc.edu.cn
  • 电话：028-83202308
  • 国际标准刊号：ISSN：1001-0548
  • 国内统一刊号：ISSN：51-1207/T
  • 邮发代号:62-34
  • 获奖情况:
  • 全国优秀科技期刊,第二届全国优秀科技期刊二等奖,两次获国家新闻出版署、国家教委“全国高校自然科...,中国期刊方阵双百期刊
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  • 被引量:12314