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Global finite-time observers for a class of nonlinear systems. (English) Zbl 1264.93029
Summary: Global finite-time observers are designed for a class of nonlinear systems with bounded varying rational powers imposed on the increments of the nonlinearities whose solutions exist and are unique for all positive time. The global finite-time observers designed in this paper have two homogeneous terms. The global finite-time convergence of the observation error system is achieved by combining global asymptotic stability and local finite-time stability.

##### MSC:
 93B07 Observability 93C10 Nonlinear systems in control theory 93D20 Asymptotic stability in control theory
##### Keywords:
global finite-time observer; nonlinear system; homogeneity
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##### References:
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