1. Key Laboratory of Intelligent Computing and Information Processing of Ministry of Education, Xiangtan University, Xiangtan 411105, China
2. School of Automation and Electronic Information, Xiangtan University, Xiangtan 411105, China
3. SGSG Science & Technology Co. Ltd. Zhuhai, Zhuhai 519085, China
4. High Speed Railway Operation and Maintenance Engineering Research Center of Henan Province, Zhengzhou 450000, China