1. School of Geography and Information Engineering, China University of Geosciences, Wuhan, China,
2. School of Geodesy and Geomatics and the Institute of Marine Science and Technology, Wuhan University, Wuhan, China
3. School of Geography and Information Engineering and the Key Laboratory of Geological Survey and Evaluation of Ministry of Education, China University of Geosciences, Wuhan, China
4. Survey Department, Naval Institute of Hydrographic Surveying and Charting, Tianjin, China