1. Department of Mathematics, Harbin University of Science and Technology, Harbin, People's Republic of China
2. Heilongjiang Provincial Key Laboratory of Optimization Control and Intelligent Analysis for Complex Systems, Harbin University of Science and Technology, Harbin, People's Republic of China
3. School of Engineering, University of South Wales, Pontypridd, UK
4. School of Measurement and Communication, Harbin University of Science and Technology, Harbin, People's Republic of China