北京邮电大学学报

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北京邮电大学学报

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三维阻抗方法及并行实现(增刊)

韩宇南

  

  1. 北京邮电大学继续教育学院(即北京邮电大学通信网络综合技术研究所;北京邮电大学培训中心)
  • 收稿日期:2006-10-13 修回日期:2006-12-05 出版日期:2007-06-30 发布日期:2007-06-30
  • 通讯作者: 贾嘉

3-D Impedance Method and Parallel Implementation

  • Received:2006-10-13 Revised:2006-12-05 Online:2007-06-30 Published:2007-06-30

摘要: 为了拓展阻抗方法在生物电磁学中的应用,重新推导了三维阻抗方法,并给出了三维阻抗方法的并行实现方式。首先基于Maxwell方程,通过离散化网格推导了三维阻抗方法,得到了可计算的电磁波波长和计算网格解析度之间的关系。然后给出了阻抗方法的并行实现的通信方式并建立了并行计算系统平台。最后,计算了暴露在高压输电线下解析度是3mm含196×114×626个网格的人体模型体内的感应电流。计算结果验证了并行阻抗方法的有效性和计算效率。

关键词: 三维阻抗方法, 并行计算, 高压输电线

Abstract: We have extended the previously three-dimensional impedance method to parallel implementation for bioelectromagnetic applications. Based on Maxwell’s equation, we deduced the 3-D IM and found the association between the minimum incident wave length and the resolution of human body model. Furthermore, we designed a communication scheme to exchange the border data for processors during iteration by Message Passing Interface (MPI) library and a parallel system was set up. We present the solution of the induced current caused by exposure to power line in visible human body model whose resolution is 3 mm and contend 196×114×626 cells. The results had confirm the validation and effective of parallel IM.

Key words: three-dimensional impedance method (3-D IM), parallel computation system, high-voltage transmission lines