1. School of Remote Sensing & Geomatics Engineering, Nanjing University of Information Science & Technology, Nanjing, China
2. Technology Innovation Center of Integration Applications in Remote Sensing and Navigation, Ministry of Natural Resources, Nanjing, China
3. Jiangsu Engineering Center for Collaborative Navigation/Positioning and Smart Applications, Nanjing, China
4. Nanjing Center, China Geological Survey, Nanjing, China