1. College of Electric and Information Engineering, Hunan Institute of Engineering, Xiangtan, China
2. School of Electrical and Information Engineering, Hunan Institute of Engineering, Xiangtan, China
3. School of Mathematics and Computational Science, Xiangtan University, Xiangtan, China
4. College of Electrical and Information Engineering and the National Engineering Research Center for Robot Visual Perception and Control Technology, Hunan University, Changsha, China
5. Shanghai Institute of Spaceflight Technology, Shanghai, China