1. Provincial Key Laboratory of Intelligent Control Theory and Application, Liaoning University of Technology, Jinzhou, China
2. State Key Laboratory of Robotics and System, Harbin Institute of Technology, Harbin, China
3. Department of Electrical and Computer Engineering, Faculty of Science and Technology, the Centre for Cognitive and Brain Sciences, and the Centre for Artificial Intelligence and Robotics, Institute of Collaborative Innovation, University of Macau, Macau, China