Automation Department, Xiamen University, Xiamen, 361005, P.R.C. yang@xmu.edu.cn|Automation Department, Xiamen University, Xiamen, 361005, P.R.C. yang@xmu.edu.cn|Automation Department, Xiamen University, Xiamen, 361005, P.R.C. yang@xmu.edu.cn|Automation Department, Xiamen University, Xiamen, 361005, P.R.C. yang@xmu.edu.cn|Automation Department, Xiamen University, Xiamen, 361005, P.R.C. yang@xmu.edu.cn