1.School of Information Science and Technology, Nantong University, Nantong, Jiangsu 226019, China
2.State Key Laboratory for Novel Software Technology, Nanjing University, Nanjing 210093, China
3.Research Center for Intelligent Information Technology, Nantong University, Nantong, Jiangsu 226019, China
4.TONGKE School of Microelectronics, Nantong University, Nantong, Jiangsu 226019, China