1. Beijing Institute of Technology,XUTELI School,Beijing,P. R. China,100081
2. Xi'an Modern Control Technology Research Institute,Xi’an,P. R. China,710100
3. Beijing Institute of Control and Electric Technology,Beijing,P. R. China,100038
4. Beijing System Design Institute of Electro-Mechanic Engineering,Beijing,P. R. China,100854
5. Beijing Institute of Technology,School of Aerospace Engineering,Beijing,P. R. China,100081