1. State Key Laboratory of Information Engineering in Surveying, Mapping and Remote Sensing, Wuhan University, Wuhan, China
2. Scientific Laboratory, Shanghai Radio Equipment Research Institute, Shanghai, China
3. Industry Development and Planning Institute, NFGA, Beijing, China
4. Electronic Information School, Wuhan University, Wuhan, China
5. Faculty of Information Engineering, China University of Geosciences, Wuhan, China
6. Faculty of Information Engineering and Automation, Kunming University of Science and Technology, Kunming, China
7. Innovation Academy for Precision Measurement Science and Technology, Chinese Academy of Sciences, Wuhan, China