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In this paper, we design an adaptive observer to estimate the nonlinear friction model with the position measurement. An adaptive observer is designed to estimate the nonlinear friction force with full-states measurement. The nonlinear friction is approximated by the fuzzy basis function expansion. An incremental sector condition as in Putra et al. are assumed. Moreover, we introduce an adaptive differential...
In this note, we design adaptive observers to estimate the nonlinear friction model when the output is the velocity and the position, respectively. First, two adaptive observer are designed to estimate the viscous friction force in the velocity measurement and in the position measurement, respectively. Secondly, the kinetic friction force and the dynamic friction force are estimated by the fuzzy adaptive...
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