Affiliation: | College of Automation, Chongqing University, Chongqing 400044, P.R. China;College of Automation, Chongqing University, Chongqing 400044, P.R. China;College of Physicsand Information Technology, Chongqing Normal University, Chongqing 400047, P.R. China;College of Automation, Chongqing University, Chongqing 400044, P.R. China |