[1] Nanjing Univ Posts & Telecommun, Inst Adv Technol, Nanjing 210003, Jiangsu, Peoples R China
[2] Huazhong Univ Sci & Technol, Sch Automat, Wuhan 430074, Peoples R China
[3] Nanjing Univ Posts & Telecommun, Sch Automat, Nanjing 210003, Jiangsu, Peoples R China