In this paper, we propose sampled-data output feedback controllers for nonlinear systems with time-varying measurement and input delays. A state prediction is generated by chains of saturated high-gain observers with switching error-correction terms and the state prediction is used to stabilize the system with saturated controls. The observers reconstruct the unmeasurable states at dierent delayed time-instants, which partition the maximal variation interval of the time-varying delays. The density of these delayed time instant depend both on the magnitude of the delays and the growth rate of the nonlinearities. Our sampled-data feedback controllers are obtained as zero-order discretizations of continuous time controllers.
2020, 20th World Congress of the International-Federation-of-Automatic-Control (IFAC), Pages -
Sampled-data output feedback controllers for nonlinear systems with time-varying measurement and control delays (04b Atto di convegno in volume)
Gruppo di ricerca: Nonlinear Systems and Control