| 电磁场有限元法在GPR正演模拟中的应用 |
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| 引用本文： | 谢辉,钟燕辉,蔡迎春.电磁场有限元法在GPR正演模拟中的应用[J].河南科学,2003,21(3):295-298. |
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| 作者姓名： | 谢辉 钟燕辉 蔡迎春 |
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| 作者单位： | 郑州大学环境与水利学院,河南,郑州,450002 |
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| 摘 要： | 采用二十节点等参单元对Pulse雷达实体进行有限元计算,用fotran语言编制了相应的三维有限元程序,根据系统识别原理建立了电磁波在Pulse雷达天线中全反射传播的正演模型,同时域有限差分法、时频域的FFT变换法相比,此结果更为精确、有效,便于工程应用。
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| 关 键 词： | 系统识别 正演模型 有限元法 等参单元 |
| 文章编号： | 1004-3918(2003)03-0295-04 |
| 修稿时间： | 2002年12月19 |
Application of finite element methods for electromagnetic fields in forward model of GPR |
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| XIE Hui,ZHONG Yan-hui,CAI Ying-chun.Application of finite element methods for electromagnetic fields in forward model of GPR[J].Henan Science,2003,21(3):295-298. |
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| Authors: | XIE Hui ZHONG Yan-hui CAI Ying-chun |
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| Abstract: | In this paper, isoparametric elements of twenty nodes are used to calculate the body of Pulse Radar, and a 3-D FEM program was compiled. According to the system identification method, a forward model was built up to describe the transmitting of electromagnetic in the radar. Compared with the methods of finite difference or FFT, the results are more precise and effective, which are more easily applied in projects. |
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| Keywords: | system identification forward model finite element method isoparametric elements |
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