1. School of Mechanical Engineering and Automation, Harbin Institute of Technology (Shenzhen), Shenzhen, China
2. College of Information Science and Engineering, Ritsumeikan University, Kusatsu, Japan
3. School of Mechatronic Engineering, Shenzhen Polytechnic, Shenzhen, China
4. Department of Electrical Engineering, Indian Institute of Technology Varanasi (BHU), Varanasi, India
5. Department of Electrical and Computer Engineering, University of Illinois Urbana-Champaign, Urbana, IL, USA