| CSAMT一维全区反演 |
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| 引用本文： | 尚通晓,李桐林,关艺晓,李建平,林品荣. CSAMT一维全区反演[J]. 吉林大学学报(地球科学版), 2007, 0(Z1) |
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| 作者姓名： | 尚通晓 李桐林 关艺晓 李建平 林品荣 |
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| 作者单位： | 吉林大学地球探测科学与技术学院 中国地质科学院地球物理地球化学勘查研究所 长春 河北廊坊 |
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| 基金项目： | 国家“863”计划项目(1212010660301) |
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| 摘 要： | 由汉克尔变换和连分式求解水平层状大地电偶源的水平电场和垂直磁场,然后由电场和磁场求得卡尼亚视电阻率,不进行近区和中间区校正,直接用阻尼最小法对近区和中间区发生畸变的卡尼亚视电阻率反演,得到地下电性参数。模型试算结果表明:虽然近区和中间区的视电阻率不能正确反映地下电性垂向变化,但由其反演仍能得到正确的结果。
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| 关 键 词： | CSAMT 一维全区反演 阻尼最小二乘法 汉克尔变换 |
Full-Region Inversion of 1-D CASMT |
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| SHANG Tong-xiao,LI Tong-lin,GUAN Yi-xiao,LI Jianping,LIN Pin-rong .College of GeoExploration Science and Technology,Jilin University,Changchun ,China. Full-Region Inversion of 1-D CASMT[J]. Journal of Jilin Unviersity:Earth Science Edition, 2007, 0(Z1) |
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| Authors: | SHANG Tong-xiao LI Tong-lin GUAN Yi-xiao LI Jianping LIN Pin-rong .College of GeoExploration Science Technology Jilin University Changchun China |
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| Affiliation: | SHANG Tong-xiao1,LI Tong-lin1,GUAN Yi-xiao1,LI Jianping1,LIN Pin-rong2 1.College of GeoExploration Science and Technology,Jilin University,Changchun 130026,China 2.Institute of Gcophysical and Geochemical Exploration CAGS,Langfang,Hebei 065000,China |
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| Abstract: | This article from Hankel transform and continued fractions to solve horizontal electric field and vertical magnetic field of dipole electrode source in horizontal-layered earths,and then by the electric and magnetic fields obtained Cagniard apparent resistivity,then We directly do Cagniard apparent resistivity Inversion using Damped least-squares method without carrying out near field and intermediate-field correction and obtain underground electric parameters.Model Calculation results show that: Although the near-and intermediate zones apparent resistivity can not correctly reflect underground electric vertical changes,but the inversion results can be correct. |
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| Keywords: | CSAMT 1-D full-region inversion damped least-squares method Hankel transform |
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