1. School of Automation, Nanjing University of Science and TechnologyNanjing210094JiangsuPeople's Republic of China
2. School of Electronic and Information Engineering, Suzhou University of Science and TechnologySuzhou215009JiangsuPeople's Republic of China
3. Department of Applied MathematicsNanjing University of Science and TechnologyNanjing210094JiangsuPeople's Republic of China
4. School of Electrical Engineering and Automation, Qufu Normal UniversityRizhao276826ShandongPeople's Republic of China