| 多姿态具磁性未爆弹磁异常快速正演 |
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| 引用本文： | 吴健生,蒋婉聪.多姿态具磁性未爆弹磁异常快速正演[J].同济大学学报(自然科学版),2018,46(5):0687-0694. |
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| 作者姓名： | 吴健生 蒋婉聪 |
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| 作者单位： | 同济大学海洋与地球科学学院;同济大学海洋地质国家重点实验室 |
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| 基金项目： | 国家自然科学基金项目（41774124） |
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| 摘 要： | 针对多姿态和形状各异的均匀磁化地下未爆弹(UXO)的磁正演问题,基于面磁荷积分原理,采用三角面元法和三次样条插值法,提出了一种高精度快速正演方法.该方法实现了有限长圆柱体和变径有限长圆柱体磁场的快速插值正演.结果表明:该方法与不使用插值的方法计算出的结果对比,误差较小.
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| 关 键 词： | 磁异常 正演 面元法 三次样条插值 |
| 收稿时间： | 2017/10/29 0:00:00 |
| 修稿时间： | 2018/3/28 0:00:00 |
Magnetic Anomaly Fast Forward modeling of Magnetized Unexploded Ordnance with Different Shapes and Positions |
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| WU Jiansheng and JIANG Wancong.Magnetic Anomaly Fast Forward modeling of Magnetized Unexploded Ordnance with Different Shapes and Positions[J].Journal of Tongji University(Natural Science),2018,46(5):0687-0694. |
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| Authors: | WU Jiansheng and JIANG Wancong |
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| Institution: | College of Ocean and Earth Science, Tongji University, Shanghai 200092, China; State Key Laboratory of Marine Geology, Tongji University, Shanghai 200092, China and College of Ocean and Earth Science, Tongji University, Shanghai 200092, China; State Key Laboratory of Marine Geology, Tongji University, Shanghai 200092, China |
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| Abstract: | Based on surface magnetic element integral theory, a fast high precision magnetic forward method was proposed to solve the magnetic fast forward modeling of magnetized unexploded ordnance with different shapes and positions, by using triangular surface element method and spline interpolation method. The method realized the fast interpolation forward modeling of finite length cylinder and variable diameter finite length cylinder. It is shown that the error of the method is relatively small compared with that of non interpolation method. |
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