Corresponding author.Yanli Du was born in 1977. She received her B.S. degree in 1998 and M.S. degree in 2003. She had ever worked in Xi'an Instrument Industry School and Nanjing Research Institute of Simula- tion and Technology for five years. Now she is a Ph.D. candidate in control engineering in Nanjing University of Aeronautics and Astronautics. Her research interests include flight control systems, neural networks and evolutionary computation. E-mail: duyinuaa@yahoo.cn Qingxlan Wu was born in 1955. He received his M.S. degree in control theory and control engi- neering in Southeast University in 1985. From 1985, he was with the College of Automation En- gineering, Nanjing University of Aeronautics and Astronautics. His research interests include non- linear control and adaptive control. E-mail: wuqingxian @ nuaa.edu.cn Changsheng Jiang was born in 1942. He re- ceived his M.S. degree in control theory and con- trol engineering in Nanjing University of Aero- nautics and Astronautics in 1968. From 1974, he was with the College of Automation Engineering, Nanjing University of Aeronautics and Astronau- tics. His research interests include flight control, nonlinear control and intelligent control. E-mail: jiangcs @ nuaa.edu.cn Jie Wen was born in 1979. She is a lecturer in Nanjing University of Aeronautics and Astronau- tics. She is currently working towards the Ph. D. degree in College of Automation Engineering, Nanjing University of Aeronautics and Astronau- tics. Her research interests include robust control and fuzzy control. E-mail: wenjie@ nuaa.edu.cn