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| 垂直电测深二维反演中非均匀初始模型的给定 | |
| 引用本文： | 刘海飞,阮百尧,廖建龙,蒋小红.垂直电测深二维反演中非均匀初始模型的给定[J].桂林工学院学报,2009,29(4):455-460. |
| 作者姓名： | 刘海飞 阮百尧 廖建龙 蒋小红 |
| 作者单位： | 1. 中南大学,信息物理工程学院,长沙,410083;桂林理工大学,广西地质工程中心重点实验室,广西,桂林,541004 2. 桂林理工大学,广西地质工程中心重点实验室,广西,桂林,541004 3. 湖南省地质工程勘察院,湖南,株洲,412003 |
| 基金项目： | 国家自然科学基金，广西地质工程中心重点实验室开放基金 |
| 摘 要： | 为了提高垂直电测深二维反演的收敛速度和反演精度，给出了利用直接反演公式确定初始模型的方法。在直接反演过程中，通过综合利用三次样条求导法、五点求导法和列维尔插值计算电测深曲线在每个极距处的梯度，并对直接反演结果进行深度校正，获得了更准确的反演结果，为二维反演提供了较好的初始模型。通过对模拟和实测电测深数据进行反演试算，验证了采用直接反演法给定非均匀初始模型的可行性和有效性。 |
| 关 键 词： | 垂直电测深 二维反演 直接反演法 初始模型 |
Giving Non-Uniform Initial Model in 2D Inversion with Vertical Electrical Sounding Data |
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| LIU Hai-fei,RUAN Bai-yao,LIAO Jian-long,JIANG Xiao-hong.Giving Non-Uniform Initial Model in 2D Inversion with Vertical Electrical Sounding Data[J].Journal of Guilin University of Technology,2009,29(4):455-460. | |
| Authors: | LIU Hai-fei RUAN Bai-yao LIAO Jian-long JIANG Xiao-hong |
| Affiliation: | LIU Hai-fei1,2,RUAN Bai-yao2,LIAO Jian-long3,JIANG Xiao-hong3(1.School of Info-Physics and Geomdtics Engineering,Central South University,Changsha 410083,China,2.Key Laboratory of Geological Engineering Centre of Guangxi,Guilin University of Technology,Guilin 541004,3.Hunan Institute of Geological Engineering Exploration,Zhuzhou 412003,China) |
| Abstract: | In order to improve the convergence rate and inversion precision in 2D inversion of vertical electrical sounding,to give the initial model of 2D inversion applying the formula of approximate inversion is put forward.During the approximate inversion,the accurate inversion result is got by comprehensive utilizing cubic spline method,five points method and Neville interpolation to compute the gradient values of every electrode spacing of electrical sounding curve and modifying the depth of approximate inversio... |
| Keywords: | vertical electrical sounding 2D inversion approximate inversion method initial model |
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