1. School of Electronic and Information Engineering and the Frontiers Science Center for Smart High-speed Railway System, Beijing Jiaotong University, Beijing, China
2. School of Computer and Information Technology and the Frontiers Science Center for Smart High-speed Railway System, Beijing Jiaotong University, Beijing, China
3. School of Electronic and Information Engineering and the Beijing Engineering Research Center of EMC and GNSS Technology for Rail Transportation, Beijing Jiaotong University, Beijing, China