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Functional Interval Observer for Discrete-Time Switched Descriptor Systems | IEEE Journals & Magazine | IEEE Xplore
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Functional Interval Observer for Discrete-Time Switched Descriptor Systems


Abstract:

This article investigates functional interval observer based estimation methods for discrete-time switched descriptor systems with disturbances. A functional observer is ...Show More

Abstract:

This article investigates functional interval observer based estimation methods for discrete-time switched descriptor systems with disturbances. A functional observer is presented using the H_\infty formalism, and then a zonotope-based approach is applied to estimate its boundaries with a reduction of observer design constraints. To avoid the wrapping effect brought by the order reduction operations in the zonotope approach, reachability analysis is combined with the H_\infty technique to design a switched functional interval observer with a better performance. Moreover, the relationship between the existing method, zonotope approach, and reachability analysis method is discussed in detail. The aforementioned methods are applied to an example for comparisons and to show their performance.
Published in: IEEE Transactions on Automatic Control ( Volume: 67, Issue: 5, May 2022)
Page(s): 2497 - 2504
Date of Publication: 11 May 2021

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