A new method to discriminate between a valid IP response and EM coupling effects
文献类型：期刊论文
| 作者 | Xiang, JP; Jones, NB; Cheng, DZ; Schlindwein, FS |
| 刊名 | GEOPHYSICAL PROSPECTING
 |
| 出版日期 | 2002-11-01 |
| 卷号 | 50期号:6页码:565-576 |
| ISSN号 | 0016-8025 |
| 英文摘要 | The problem of discrimination between a valid induced polarization (IP) response and electromagnetic (EM) coupling effects is considered and an effective solution is provided. First, a finite dimensional approximation to the Cole-Cole model is investigated. Using the least-squares approach, the parameters of the approximate model are obtained. Next, based on the analysis of overvoltage, a finite dimensional structure of the IP model is produced. Using this overvoltage-based structure, a specific finite dimensional approximation of the Cole-Cole model is proposed. Summarizing the analysis of the finite dimensional IP model, it is concluded that the proposed IP model, which fits the field data much better than the traditional Cole-Cole model, is essentially an RC-circuit. From a circuit-analysis point of view, it is well known that an electromagnetic effect can be described by an RL-circuit. The simulation results on experimental data support this conception. According to this observation, a new method to discriminate between a valid IP response and EM coupling effects is proposed as follows: (i) use a special finite dimensional model for IP-EM systems; (ii) obtain the parameters for the model using a least-squares approach; (iii) separate RC-type terms and RL-type terms - the first models the IP behaviour, the latter represents the EM part. Simulation on experimental data shows that the method is very simple and effective. |
| WOS研究方向 | Geochemistry & Geophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:000179266500002 |
| 出版者 | WILEY-BLACKWELL |
| 源URL | [http://ir.amss.ac.cn/handle/2S8OKBNM/17040]  |
| 专题 | 中国科学院数学与系统科学研究院 |
| 通讯作者 | Xiang, JP |
| 作者单位 | 1.Cent S Univ, Changsha 410083, Peoples R China 2.Univ Leicester, Dept Engn, Leicester LE1 7RH, Leics, England 3.Chinese Acad Sci, Inst Syst Sci, Beijing 100080, Peoples R China |
| 推荐引用方式 GB/T 7714 | Xiang, JP,Jones, NB,Cheng, DZ,et al. A new method to discriminate between a valid IP response and EM coupling effects[J]. GEOPHYSICAL PROSPECTING,2002,50(6):565-576. |
| APA | Xiang, JP,Jones, NB,Cheng, DZ,&Schlindwein, FS.(2002).A new method to discriminate between a valid IP response and EM coupling effects.GEOPHYSICAL PROSPECTING,50(6),565-576. |
| MLA | Xiang, JP,et al."A new method to discriminate between a valid IP response and EM coupling effects".GEOPHYSICAL PROSPECTING 50.6(2002):565-576. |
入库方式： OAI收割
来源：数学与系统科学研究院
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