1. School of Electrical Engineering and Automation, Anhui University, Hefei, Anhui 230601, People's Republic of China
2. School of Instrument Science and Opto-electronics Engineering, Hefei University of Technology, Hefei, Anhui 230009, People's Republic of China
3. CAS Key Laboratory of Mechanical Behavior and Design of Materials, Department of Precision Machinery and Precision Instrumentation, University of Science and Technology of China, Hefei, Anhui 230026, People's Republic of China
4. Key Laboratory of Computational Intelligence and Signal Processing, Ministry of Education, Anhui University, Hefei, Anhui 230039, People's Republic of China
5. School of Mechanical Engineering, Nantong Vocational University, Nantong, Jiangsu 226007, People's Republic of China