Skip to Main content Skip to Navigation
New interface
Journal articles

High-Gain Dead-Zone Observers for Linear and Nonlinear Plants

Abstract : We propose an adaptive dead-zone mechanism to robustify observers against high-frequency noise. The construction applies to Luenberger observers and high-gain observers for plants in strict feedback form. The dead-zone improves performances by trimming a portion of the output injection term and trapping the high frequency noise in the dead band. We show that the observer gain and the adaptation parameters can be obtained by solving a linear matrix inequality, whose feasibility only requires detectability of the plant. The parameters obtained through this optimization ensure (in the absence of noise) global exponential stability of the estimation error dynamics, and input-to-state stability (ISS) from the measurement noise to the estimation error.
Document type :
Journal articles
Complete list of metadata

Cited literature [33 references]  Display  Hide  Download
Contributor : Luca Zaccarian Connect in order to contact the contributor
Submitted on : Sunday, January 6, 2019 - 11:26:11 AM
Last modification on : Tuesday, October 25, 2022 - 11:58:10 AM
Long-term archiving on: : Sunday, April 7, 2019 - 12:49:08 PM


Files produced by the author(s)



M. Cocetti, Sophie Tarbouriech, Luca Zaccarian. High-Gain Dead-Zone Observers for Linear and Nonlinear Plants. IEEE Control Systems Letters, 2019, 3 (2), pp.356-361. ⟨10.1109/LCSYS.2018.2880931⟩. ⟨hal-01970882⟩



Record views


Files downloads