1. Postgraduate, Geospatial Information College, Information Engineering Univ., Zhengzhou 450001, China. ORCID: .
2. Lecturer, Geospatial Information College, Information Engineering Univ., Zhengzhou 450001, China; Postdoctoral, Dept. of Geodesy, State Key Laboratory of Geo-information Engineering, Xi’an 710054 China.
3. Professor, Geospatial Information College, Information Engineering Univ., Zhengzhou 450001, China (corresponding author).
4. Lecturer, Geospatial Information College, Information Engineering Univ., Zhengzhou 450001, China.
5. Doctoral Student, Geospatial Information College, Information Engineering Univ., Zhengzhou 450001, China. ORCID: .
6. Postgraduate, Geospatial Information College, Information Engineering Univ., Zhengzhou 450001, China.