1. School of Automation, Guangdong Provincial Key Laboratory of Intelligent Decision and Cooperative Control, Guangdong University of Technology, Guangzhou, China
2. Department of Electrical Engineering, University of California, Riverside, CA, USA
3. Department of Electrical Engineering, City University of Hong Kong, Hong Kong, China
4. Department of Electrical and Electronic Engineering, Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China