College of Electronic Information and Automation, Guilin University of Aerospace Technology, Guilin 541000, China;
School of Information Science and Engineering, Central South University, Changsha 410083, China;
School of Information Science and Engineering, Central South University, Changsha 410083, China;
Guilin Public Works Section of High Speed Railway, Nanning Railway Bureau, Guilin 541000, China;
College of Electronic Information and Automation, Guilin University of Aerospace Technology, Guilin 541000, China;