Affiliation: | 1. Institute of Automation, Qufu Normal University , Qufu 273165, Shandong Province, China wyq@qfnu.edu.cn;3. Institute of Nonlinear Science, Academy of Armoured Force Engineering , Beijing 100072, China;4. Institute of Information and Control Engineering, Weifang University , Weifang 260106, Shandong Province, China |