| 基于电偶源的体积分方程法三维电磁反演 |
| |
| 引用本文： | 张辉,李桐林,董瑞霞.基于电偶源的体积分方程法三维电磁反演[J].吉林大学学报(地球科学版),2006,36(2):284-288. |
| |
| 作者姓名： | 张辉 李桐林 董瑞霞 |
| |
| 作者单位： | 1．吉林大学 地球探测科学与技术学院， 长春 130026;2．中油集团 东方地球物理公司研究院乌鲁木齐分院， 乌鲁木齐 830016 |
| |
| 摘 要： | 利用体积分方程对电偶源激发时均匀导电半空间频率域三维电磁场进行正反演计算。计算中参考Eaton等提出的方法将雅可比矩阵分为线性和非线性偏微分项求解，然后利用阻尼最小二乘技术进行最优化迭代拟合。这种反演方法具有更广的适用范围和更高的计算精度,能够准确、稳定地得到较高分辨率的地下三维异常体电阻率分布图像。
|
| 关 键 词： | 体积分方程法 三维电磁场 反演 电偶源 |
| 文章编号： | 1671-5888(2006)02-0284-05 |
| 收稿时间： | 2005-06-22 |
| 修稿时间： | 2005年6月22日 |
3D Electromagnetic Inversion by Volume Integral Equation Method Based on Current Dipole Source |
| |
| ZHANG Hui,LI Tong-lin,DONG Rui-xia.3D Electromagnetic Inversion by Volume Integral Equation Method Based on Current Dipole Source[J].Journal of Jilin Unviersity:Earth Science Edition,2006,36(2):284-288. |
| |
| Authors: | ZHANG Hui LI Tong-lin DONG Rui-xia |
| |
| Institution: | 1.College of GeoExploration Science and Technology，Jilin University, Changchun 130026, China;2.Urumqi Branch of GRI, BGP, Urumqi 830016, China |
| |
| Abstract: | Volume integral equation method has been used to calculate forward and inverse problems of 3D electromagnetic fields in homogeneous half-space.In the calculation,Eaton's method was first referenced to decompose the Jacobian matrix into linear and nonlinear partial differential terms,damped least square method was then applied to fit it optimized iteratively.Numerical results indicate that the algorithm is more accurate and stable in modeling 3D electromagnetic responses.The inversion algorithm can obtain high-resolution 3D anomaly body conductivity images. |
| |
| Keywords: | volume integral equation method 3D EM inversion current dipole source |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
| 点击此处可从《吉林大学学报(地球科学版)》浏览原始摘要信息 |
| 点击此处可从《吉林大学学报(地球科学版)》下载免费的PDF全文 |
