Abstract
This paper is concerned with the problem of positive observer design for impulsive positive systems (IPS) with interval uncertainties and time delay. A copositive Lyapunov-Krasovskii functional with exponential term is constructed. By applying the average impulsive interval method, sufficient conditions for the existence of the positive observer are established to guarantee the exponential stability of the corresponding augmented system, which ensures the designed positive observer can estimate the system states exponentially. Combined with the linear programming (LP) technique, an algorithm is developed to design the observer gain matrices. Finally, a numerical example is provided to show the effectiveness of the theoretical results.
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Recommended by Associate Editor Hamid Reza Karimi under the direction of Editor Ju Hyun Park. This work is supported by the National Natural Science Foundation of China under Grants 61374171, 61572210, and 51537003, the Fundamental Research Funds for the Central Universities (2015TS030).
Meng-Jie Hu received her B.S. degree in School of Automation from Wuhan University of Technology(WUT), Wuhan, China in 2013. Now she is pursuing a M.S. degree in School of Automation from Huazhong University of Science and Technology( HUST), Wuhan, China. Her current research interests include positive systems, hybrid systems and impulsive control.
Yan-Wu Wang received her B.S. degree in automatic control, her M.S. degree and her Ph.D. degree in control theory and control engineering from Huazhong University of Science and Technology (HUST), Wuhan, China, in 1997, 2000, and 2003, respectively. From 2003 to 2005, she worked as a Post-Doctoral Researcher in the Department of Electronics and Information Engineering, HUST, Wuhan, China. From Feb. to April, 2005, she held the visiting position with the School of Electrical and Electronic Engineering in Nanyang Technological University. From Sep. 2008 to Sep. 2009, she held the position of visiting scholar with the Department of Mechanical Engineering in Boston University. Since Nov. 2009, she has been a Professor in the Department of Control Science and Engineering, HUST. Her current research interests include complex networks and hybrid systems et al. Dr. Wang is a recipient of the 2006 Natural Science Award of Ministry of Education Nominated State Science and Technology Award, China, and the 2004 Excellent PhD Dissertation of Hubei Province, China. In 2008, she was awarded the title of "New Century Excellent Talents" by the Chinese Ministry of Education.
Jiang-Wen Xiao received his B.S. degree in electrical engineering, his M.S. degree in control theory and control engineering, and his Ph.D. degree in systems engineering from Huazhong University of Science and Technology (HUST), Wuhan, China, in 1994, 1997, and 2001 respectively. From 2001 to 2003, he worked as a Post-Doctoral Researcher in the College of Management, HUST, Wuhan, China. Since July 2003, he has been an Associate Professor in the Department of Control Science and Engineering, HUST. His current research interests include modeling and control of nonlinear and complex systems.
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Hu, MJ., Wang, YW. & Xiao, JW. Positive observer design for linear impulsive positive systems with interval uncertainties and time delay. Int. J. Control Autom. Syst. 15, 1032–1039 (2017). https://doi.org/10.1007/s12555-016-0102-y
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DOI: https://doi.org/10.1007/s12555-016-0102-y