[an error occurred while processing this directive] 世界地质 2020, 39(3) 669-676 DOI:   10.3969/j.issn.1004-5589.2020.03.017  ISSN: 1004-5589 CN: 22-1111/P
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本文关键词相关文章
电阻率反演
极化率反演
交叉梯度算法
联合反演
本文作者相关文章
侯宇健
李桐林
张镕哲
陈汉波
PubMed
Article by Hou Y
Article by Li T
Article by Zhang R
Article by Chen H
交叉梯度约束的三维极化率/电阻率联合反演
侯宇健, 李桐林, 张镕哲, 陈汉波
吉林大学地球探测科学与技术学院, 长春 130026
摘要： 为减少反演的多解性，多数情况下期望电阻率和极化率异常具有相同结构。笔者利用交叉梯度算法实现了联合反演。在计算交叉梯度项过程中，提出一种新的离散化网格边界处理方法，提高了交叉梯度项计算的速度和精度。试算结果表明三维电阻率/极化率联合反演能有效地提高同结构异常体的反演效果。
关键词： 电阻率反演   极化率反演   交叉梯度算法   联合反演  
Joint inversion of 3D polarizability and resistivity constrained by cross gradient
HOU Yu-jian, LI Tong-lin, ZHANG Rong-zhe, CHEN Han-bo
College of Geo-exploration Science and Technology, Jilin University, Changchun 130026, China
Abstract: In order to reduce the multiplicity of inversion, it is expected that resistivity and polarizability anomalies have the same structure in most cases. In this paper, cross gradient term is used to realize joint inversion. In the process of calculating cross gradient term, a new discretized grid boundary processing method is proposed to improve the speed and accuracy of cross gradient term calculation. The results show that the joint inversion of 3D resistivity and polarizability can effectively improve the inversion effect of the abnormal body with the same structure.
Keywords: resistivity inversion   polarizability inversion   cross gradient algorithm   joint inversion  
收稿日期 2020-02-23 修回日期 2020-05-28 网络版发布日期  
DOI: 10.3969/j.issn.1004-5589.2020.03.017
基金项目:

黑地勘科[2017]03资助

通讯作者: 李桐林(1962-),男,教授,主要从事电磁法理论与应用教学和研究。E-mail:lilaoshizh@163.com
作者简介:
作者Email: lilaoshizh@163.com
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