1. School of Mechanical EngineeringUniversity of Science and Technology BeijingBeijingPeople's Republic of China
2. School of Instrumentation Science and Opto‐electronics EngineeringBeihang UniversityBeijingPeople's Republic of China
3. College of Automation EngineeringNanjing University of Aeronautics and AstronauticsNanjingJiangsu ProvincePeople's Republic of China
4. Institute of AutomationChinese Academy of SciencesBeijingPeople's Republic of China