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Functional observers with linear error dynamics for discrete-time nonlinear systems
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DOI：10.1016/j.automatica.2022.110420.png)
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Abstract
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This work deals with the problem of designing observers for the estimation of a single function of the states for discrete-time nonlinear systems. Necessary and sufficient conditions for the existence of lower order functional observers with linear dynamics and linear output map are derived. The results provide a direct generalization to Luenberger's linear theory of functional observers. (C) 2022 Elsevier Ltd. All rights reserved.
Keywords:
Functional observers
Non-linear systems
Discrete-time systems
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