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Communication Dans Un Congrès Année : 2021

A noise less-sensing semi-implicit discretization of a homogeneous differentiator : principle and application

Résumé

Based on the projector introduced in recent Euler semi-implicit methods, the main contribution of this paper is the reduction of the effect of noise on the sliding surface of the discretized homogeneous differentiator. For that, an adaptation law according to the magnitude of the high frequency noise is proposed to modify the behavior of the projector when the discretized differentiator remains on the sliding surface. In presence of noise, the differentiator will have an asymptotic convergence but will be less-sensing noise. Otherwise, when the differentiator is not affected by noise on the sliding surface, its convergence will be in finite-time. Experimental results are shown in order to highlight the well founded of the contribution.
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Dates et versions

hal-03414184 , version 1 (04-11-2021)

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  • HAL Id : hal-03414184 , version 1

Citer

Loïc Michel, Malek Ghanes, Franck Plestan, Yannick Aoustin, Jean-Pierre Barbot. A noise less-sensing semi-implicit discretization of a homogeneous differentiator : principle and application. ECC 21-Berlin, Jul 2021, Berlin, France. ⟨hal-03414184⟩
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