1. School of Microelectronics Tianjin University Tianjin China
2. Department of Electronics Carleton University Ottawa Canada
3. Faculty of Information Technology Beijing University of Technology Beijing China
4. School of Electronics and Information Engineering Tiangong University Tianjin China
5. College of Electrical and Information Engineering Shaanxi University of Science and Technology Xi'an China
6. School of Control and Mechanical Engineering Tianjin Chengjian University Tianjin China