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Sensitivity to high-frequency measurement noise of nonlinear high-gain observers

Alessandro Astolfi 1, 2 Lorenzo Marconi 2 Laurent Praly 3 Andrew Teel 4
1 DEEE - Department of Electrical and Electronic Engineering [London]
2 University of Bologna
3 CAS - Centre Automatique et Systèmes
4 ECE-UCSB - Department of Electrical and Computer Engineering [Santa Barbara]
Abstract : This paper deals with the characterisation of the sensitivity to high-frequency measurement noise of nonlinear high-gain observers. The proposed tool provides bounds for the steady-state estimate in presence of noise when the high-gain parameter characterising the speed of convergence of the observer is fixed. The nonlinear analysis captures the effect of the noise frequency showing the “low-pass” filtering properties of the observer.
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https://hal-mines-paristech.archives-ouvertes.fr/hal-01445370
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Submitted on : Tuesday, January 24, 2017 - 5:58:42 PM
Last modification on : Tuesday, January 18, 2022 - 2:26:05 PM

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  • HAL Id : hal-01445370, version 1

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Alessandro Astolfi, Lorenzo Marconi, Laurent Praly, Andrew Teel. Sensitivity to high-frequency measurement noise of nonlinear high-gain observers. NOLCOS 2016, 10th IFAC Symposium on Nonlinear Control Systems, Aug 2016, Monterey, United States. pp.874 - 878. ⟨hal-01445370⟩

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