1. Tianjin Key Laboratory for Control Theory and Applications in Complicated Systems, School of Electrical Engineering and Automation, Tianjin University of Technology, Tianjin, China
2. Technical College for the Deaf, Tianjin University of Technology, Tianjin, China
3. Tianjin Key Laboratory for Control Theory and Applications in Complicated Systems, TUT Maritime College, Tianjin University of Technology, Tianjin, China