1. School of Geophysics and Information Technology, China University of Geosciences, Beijing, China
2. Hebei Institution of Software, Baoding, China
3. School of Earth and Space Sciences, Peking University, Beijing, China
4. China Aero Geophysical Survey and Remote Sensing Center for Natural Resources, Beijing, China
5. Geophysical Exploration Academy of China Metallurgical Geology Bureau, Baoding, China