CAI Yan1, 2, WU Min1, 2, ZHOU Jin-ni1, 2, WANG Chun-shen1, 2
(1. School of Information Science and Engineering, Central South Univ, Changsha,Hunan410083, China;2. Hunan Engineering Laboratory for Advanced Control and Intelligent Automation,Central South Univ, Changsha,Hunan410083, China)