[Yang, Hua;Liu, Jianguo] Huazhong Univ Sci & Technol, Sch Automat, Wuhan, Hubei, Peoples R China.^[Yang, Hua] Wuhan Polytech Univ, Sch Math & Comp Sci, Wuhan, Hubei, Peoples R China.^[Jiang, Feng] Zhongnan Univ Econ & Law, Sch Stat & Math, Wuhan, Hubei, Peoples R China.