1. School of Computer Science, Shenyang Aerospace University, Shenyang, China
2. School of Information and Electronics and the Beijing Key Laboratory of Fractional Signals and Systems, Beijing Institute of Technology, Beijing, China
3. Department of Electrical and Computer Engineering, Mississippi State University, Starkville, MS, USA
4. College of Artificial Intelligence, Shenyang Aerospace University, Shenyang, China
5. School of Electronics and Information Engineering, Harbin Institute of Technology, Harbin, China