1. Assistant Professor, School of Automation, Northwestern Polytechnical Univ., Xi’an, Shaanxi 710072, China (corresponding author).
2. Ph.D. Student, School of Automation, Northwestern Polytechnical Univ., Xi’an, Shaanxi 710072, China.
3. Engineer, Beijing Institute of Astronautical Systems Engineering, Beijing 100076, China.
4. Professor, School of Automation, Northwestern Polytechnical Univ., Xi’an, Shaanxi 710072, China.
5. Associate Professor, School of Automation, Northwestern Polytechnical Univ., Xi’an, Shaanxi 710072, China.