中国有色金属学报(英文版)
Transactions of Nonferrous Metals Society of China
| Vol. 30 No. 12 December 2020 |
（1. Key Laboratory of Metallogenic Prediction of Nonferrous Metals and Geological Environment Monitoring of Ministry of Education (Central South University), Changsha 410083, China;
2. Hunan Key Laboratory of Non-ferrous and Geological Hazard Detection, Changsha 410083, China;
3. School of Geosciences and Info-Physics, Central South University, Changsha 410083, China）
Abstract:A novel method for source effect correction based on integral equation method is proposed. By taking the electrical horizontal field Ex of current source as an example, the correction method is validated using both simulated data and field data. The results show that the correction method is feasible and effective for isotropic media. When the field data are processed, the correction method normalizes the sources with different geological structures, which eliminates the geological difference among sources, and retains the geological difference among receivers. The correction results are in line with the expectation in whole.
Key words: source effect; controlled-source electromagnetics; source overprint effect; shadow effect
