[1] Nanjing Univ Posts & Telecommun, Coll Automat, Nanjing 210023, Jiangsu, Peoples R China
[2] Nanjing Univ Posts & Telecommun, Coll Artificial Intelligence, Nanjing 210023, Jiangsu, Peoples R China
[3] Nanjing Univ Posts & Telecommun, Inst Adv Technol, Nanjing 210023, Jiangsu, Peoples R China
[4] China Univ Min & Technol, Sch Elect & Power Engn, Xuzhou 221266, Jiangsu, Peoples R China