The H2-control for jump linear systems: cluster observations of the Markov state |
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Authors: | Joãao BR do Val Josè C GeromelAlim PC Gonçalves |
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Affiliation: | UNICAMP—Univ. Est. de Campinas, Fac. de Eng. Elétrica e de Computação, Depto. de Telemática, C.P. 6101, 13081-970 Campinas, SP, Brazil |
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Abstract: | The H2-norm control problem of discrete-time Markov jump linear systems is addressed in this paper when part of, or the total of the Markov states is not accessible to the controller. The non-observed part of the Markov states is grouped in a number of clusters of observations; the case with a single cluster retrieves the situation when no Markov state is observed. The control action is provided in linear feedback form, which is invariant on each cluster, and this restricted complexity setting is adopted, aiming at computable solutions. We explore a recent result by de Oliveira, Bernussou, and Geromel (Systems Control Lett. 37 (1999) 261) involving an LMI characterization to establish a H2 solution that is stabilizing in the mean square sense. The novelty of the method is that it can handle in LMI form the situation ranging from no Markov state observation to complete state observation. In addition, when the state observation is complete, the optimal H2-norm solution is retrieved. |
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Keywords: | Markov models Stochastic jump processes Incomplete data H2 control Stabilizing feedback |
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