State and unknown input estimations for discrete-time switched linear systems with average dwell time |
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| Authors: | Shenghui Guo Bin Jiang Fanglai Zhu Qingbin Gao |
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| Institution: | 1. College of Electronics and Information Engineering, Suzhou University of Science and Technology, Suzhou 215009, China;2. College of Automation Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 211106, China;3. College of Electronics and Information Engineering, Tongji University, Shanghai 201804, China;4. College of Engineering, University of Alabama, Tuscaloosa, AL 35487, USA |
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| Abstract: | In this paper, the problem of state and unknown input estimations for a class of discrete-time switched linear systems with average dwell time switching is investigated. First, a proportional integral observer with an exponential H∞ performance is constructed to estimate the system state and unknown input simultaneously. Second, both of the observability and the stability of the estimation error system are analyzed, then the derivation of the observer gain matrices is transformed into the calculation of linear matrix inequalities. Third, the obtained results are extended to the systems with output disturbances. Finally, two simulation examples are provided to show the validity and effectiveness of the proposed methods. |
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| Keywords: | Corresponding author at: College of Electronics and Information Engineering Suzhou University of Science and Technology Suzhou 215009 China |
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