Jiwei Wen was born in 1981. He is a Ph.D. student of the Institute of Automation, Jiangnan University. His research interest is analysis and synthesis of Markov jump systems. E-mail: wjw8143@yahoo.com.cn Corresponding author.Fei Liu was born in 1965. He received the Ph.D. degree of control science and control engineering from Zhejiang University. Now he is a professor of the Institute of Automation, Jiangnan University. His research interests include advanced control theory and application, industrial systems monitoring and diagnosis. E-mail: fliu @jiangnan.edu.cn