1. Institute of Applied Mathematics, Hebei Academy of Sciences, Hebei Authentication Technology Engineering Research Center, Shijiazhuang, HB, China, Shijiazhuang, Hebei, China
2. College of Information Science and Technology, Shijiazhuang Tiedao University, Shijiazhuang, Hebei, China
3. Institute of Applied Mathematics, Hebei Academy of Sciences, Shijiazhuang, Hebei, China