Time-domain Green function solution for transient electromagnetic field
文献类型：期刊论文
| 作者 | Xue Guo-Qiang1; Wang He-Yuan2; Yan Shu3; Zhou Nan-Nan1 |
| 刊名 | CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION
 |
| 出版日期 | 2014-02-01 |
| 卷号 | 57期号:2页码:671-678 |
| 关键词 | Transient electromagnetic field Point charge Time-domain Green functions D'Alembert equation Diffusion equation |
| ISSN号 | 0001-5733 |
| DOI | 10.6038/cjg20140230 |
| 文献子类 | Article |
| 英文摘要 | Time-domain near-source electromagnetic method has the merit of strong signal, deep detecting depth and high accuracy. However, the method meet problem, because dipole approximation in the near-source will cause greater error based on traditional electromagnetic theory. Studying direct time domain electromagnetic field analytical formula derivation is one way of solving the problem. Based on point charge hypothesis, TEM field analytical solution has been derived by introducing time-domain Green function in this paper. Integral formula has been used to transform electromagnetic field damping wave equation into Green function integral form. Auxiliary path has been constructed for solving singularity problem. 4-tuple generalized integral formula of time-domain electromagnetic field response has been arrived by using Jordan's lemma, the residue theorem and generalized function method. Direct-time-domain exact solution of D'Alembert equations firstly has been derived, whose form is agree with the traditioanl "matching" result, which show that the method of time-domain electromagnetic field based on Green function is right. Then, the direct-time-domain formula of diffusion function also has been given. After the copmaresion the numerical result between point charge Green function exact sulotion and approximate solution, it can be concluded that the derivation formula in this paper has higher precision. Furtherly, the full-space TEM direct-time-domain solution due to loop-source has been derived using integral method. The achievement lay a theoretical fundation for solving the problem of TEM All-Zone detection with directy time domain analytical solution. |
| WOS研究方向 | Geochemistry & Geophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:000332443600030 |
| 出版者 | SCIENCE PRESS |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/86750]  |
| 专题 | 中国科学院地质与地球物理研究所 |
| 通讯作者 | Xue Guo-Qiang |
| 作者单位 | 1.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Mineral Resources, Beijing 100029, Peoples R China 2.Liaoning Univ Technol, Coll Sci, Jinzhou 121001, Peoples R China 3.Jiangsu Univ, Sch Comp Sci & Telecommun Engn, Zhenjiang 212013, Peoples R China |
| 推荐引用方式 GB/T 7714 | Xue Guo-Qiang,Wang He-Yuan,Yan Shu,et al. Time-domain Green function solution for transient electromagnetic field[J]. CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION,2014,57(2):671-678. |
| APA | Xue Guo-Qiang,Wang He-Yuan,Yan Shu,&Zhou Nan-Nan.(2014).Time-domain Green function solution for transient electromagnetic field.CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION,57(2),671-678. |
| MLA | Xue Guo-Qiang,et al."Time-domain Green function solution for transient electromagnetic field".CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION 57.2(2014):671-678. |
入库方式： OAI收割
来源：地质与地球物理研究所
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