| 电阻率层析成像及演中若干问题的讨论 |
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| 引用本文： | 孙洪星,李大海.电阻率层析成像及演中若干问题的讨论[J].地质学刊,1996,20(3). |
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| 作者姓名： | 孙洪星 李大海 |
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| 作者单位： | 中国矿业大学资源与环境科学学院 |
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| 摘 要： | 以双异性点电流源电流场二维地电断面为例，着重讨论了电阻率展析成像反演中有限单元法数值模拟边界条件的选择、网格剖分以及模拟精度等问题，同时也讨论了成像反演中最优化及演方法及拟合参数的评价等。文中提出的新的网格剖分方法和选择的边界条件可有效地提高计算速度和数值模拟的精度。
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| 关 键 词： | 电阻率法，层析成像，反演问题，数值模拟，江苏 |
Problems of Resistivity Tomographic Imaging Inversion |
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| Sun Hongxing et al.Problems of Resistivity Tomographic Imaging Inversion[J].Jiangsu Geology,1996,20(3). |
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| Authors: | Sun Hongxing |
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| Abstract: | Taken two-dimensional geoelectric section in double opposite current field of point current source for example,the authors discuss that the numerical simulation of finite element,selection of marginal conditions,network dismemberment and simulation precision in resistivity tomographic imaging inversion.The optimal inversional method and the evaluation for fitting parameters are discussed at the same time.Third scheme,a new method of network dismemberment and marginal conditions raised by authors can efficiently increase the calculation velocity and precision of numerical simulation. |
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| Keywords: | Resistivity method Tomographic imaging Inversion Numerical simulation Jiangsu |
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