| 电阻率三维复杂结构的快速反演 |
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| 引用本文： | 吴小平,汪彤彤.电阻率三维复杂结构的快速反演[J].煤田地质与勘探,2001,29(2):48-52. |
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| 作者姓名： | 吴小平 汪彤彤 |
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| 作者单位： | 1. 中国科学技术大学地球与空间科学系, 安徽 合肥 230026; |
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| 基金项目： | 国家自然科学基金!(4 0 0 0 40 0 5 )，中国科技大学青年科学基金! (KA0 712 ) |
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| 摘 要： | 运用共轭梯度迭代算法解三维反问题中的线性方程组,并结合求Jacobi矩阵 G 的Rodi算法,则每次反演迭代仅需一次正演计算,大大加快了计算速度,实现了直流电阻率三维快速反演。另外,由于避免了存储 G 和 G T G 所需的庞大存储量,以及在三维反演中加入光滑约束,有利于精细网格下的复杂模型反演。
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| 关 键 词： | 电阻率 复杂结构 三维反演 共轭梯度 |
| 文章编号： | 1001-1986(2001)02-0048-04 |
| 收稿时间： | 2000-06-23 |
Rapid 3-D Resistivity inversion for complicate model |
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| WU Xiao-ping,WANG Tong-tong.Rapid 3-D Resistivity inversion for complicate model[J].Coal Geology & Exploration,2001,29(2):48-52. |
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| Authors: | WU Xiao-ping WANG Tong-tong |
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| Institution: | 1. University of Science and Technology of China, Department of Earth and Space Science, Hefei 230036, Chian;2. Anhui Institute of Environmental Protection, Hefei 230061, China |
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| Abstract: | While conjugate gradient(CG) relaxation technique is used to solve the inverse equations and Rodi method is introduced to compute the Jacobi matrix G,only one forward calculation is required in each inversion iteration,thus the 3-D resistivity inversion is computed much quickly.Additionally,by avoiding huge storage for G and GTG and imposing a smoothness constraint on model,we make a solid base of 3-D resistivity inversion for the complicate structure. |
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| Keywords: | resistivity complicate structure 3-D inversion conjugate gradient |
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