1. School of Electrical and Information Engineering, Zhengzhou University,Zhengzhou,China,450001
2. Henan High-Speed Railway Operation and Maintenance Engineering Research Center,Zhengzhou,China,451460
3. Beijing Jiaotong University,State Key Laboratory of Rail Traffic Control and Safety,Beijing,China,100044
4. College of Information Science and Engineering, Henan University of Technology,Zhengzhou,China,450001
5. Space Information Research Institute, Hangzhou Dianzi University,Hangzhou,China,310018