Abstract
The extended state observer (ESO) is a novel observer for a class of uncertain systems. Since ESO adopts the continuous non-smooth structure, the classical observer design theory is hard to use for ESO analysis. In this note, the self-stable region (SSR) approach, which is a nonlinear synthesis method for nonlinear uncertain systems, will be used for ESO design and its stability analysis. The advantages of the non-smooth structure in ESO for improving the convergence properties and the estimation precision will be shown.
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Huang, Y., Han, J. Analysis and design for the second order nonlinear continuous extended states observer. Chin.Sci.Bull. 45, 1938–1944 (2000). https://doi.org/10.1007/BF02909682
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DOI: https://doi.org/10.1007/BF02909682