1. School of Aerospace Engineering, Beijing Institute of Technology, Beijing 100081, China; School of Informatic Engineering, Mianyang Techers' College, Mianyang 62100, China
2. Beijing Institute of Electronic System Engineering, Beijing 100854, China
3. School of Aerospace Engineering, Beijing Institute of Technology, Beijing 100081, China
4. Beijing Institute of Space Long March Vehicle, Beijing 100076, China