Wenfu Xu (W.X.) received his B.E. and M.E. degrees in Control Engineering from the Hefei University of Technology, Hefei, China, in 2001 and 2003, respectively, and Ph.D. degrees in Control science and Engineering from the Harbin Institute of Technology, Harbin, China, in 2007. He was a Research Associate with the Department of Mechanical and Automation Engineering, The Chinese University of Hong Kong, Hong Kong, China. He is currently a Professor with the Department of Mechanical and Automation Engineering, Harbin Institute of Technology (Shenzhen), Shenzhen, China.