1. Researcher, School of Air Transportation, Shanghai Univ. of Engineering Science, Shanghai 201620, China; Researcher, State Key Laboratory of Robotics, Shenyang Institute of Automation, Chinese Academy of Sciences, Shenyang 110016, China (corresponding author).
2. Reader, Centre for Aeronautics, Cranfield Univ., Bedfordshire MK43 0AL, UK.
3. Research Engineer, Teaching and Research Section, MuDanJiang Medical Univ., Mudanjiang 157400, China.
4. Professor, School of Aeronautics and Astronautics, Shanghai Jiao Tong Univ., Shanghai 200240, China.
5. Researcher, State Key Laboratory of Robotics, Shenyang Institute of Automation, Chinese Academy of Sciences, Shenyang 110016, China.