1. a Institute of Space Intelligent System, Harbin Institute of Technology, Harbin 150001, P.R. China;, Email: wfxu@robotsat.com
2. b Institute of Space Intelligent System, Harbin Institute of Technology, Harbin 150001, P.R. China
3. c Institute of Space Intelligent System, Harbin Institute of Technology, Harbin 150001, P.R. China
4. d Department of Automation and Computer-Aided Engineering, The Chinese University of Hong Kong, Hong Kong, P.R. China
5. e Institute of Space Intelligent System, Harbin Institute of Technology, Harbin 150001, P.R. China
6. f Institute of Space Intelligent System, Harbin Institute of Technology, Harbin 150001, P.R. China