Adaptive control: stability, convergence, and robustness
Adaptive control: stability, convergence, and robustness
Nonlinear control design: geometric, adaptive and robust
Nonlinear control design: geometric, adaptive and robust
Universal adaptive stabilization of nonlinear systems
Dynamics and Control
Nonlinear observer design using Lyapunov's auxiliary theorem
Systems & Control Letters
Nonlinear and Adaptive Control Design
Nonlinear and Adaptive Control Design
Nonlinear Observer Design in the Siegel Domain
SIAM Journal on Control and Optimization
On the Existence of a Kazantzis--Kravaris/Luenberger Observer
SIAM Journal on Control and Optimization
Nonlinear and Adaptive Control with Applications
Nonlinear and Adaptive Control with Applications
Brief Two results for adaptive output feedback stabilization of nonlinear systems
Automatica (Journal of IFAC)
Brief paper: Observer design for range and orientation identification
Automatica (Journal of IFAC)
Observers for systems with nonlinearities satisfying incremental quadratic constraints
Automatica (Journal of IFAC)
A constructive speed observer design for general Euler-Lagrange systems
Automatica (Journal of IFAC)
| Hi-index | 22.15 |
A constructive algorithm for designing an observer for a class of nonlinear systems is presented. We follow the invariant manifold based approach which allows one to shape the dynamics of the estimation error. However, this shaping relies on the solution of a partial differential equation, which becomes difficult for multi-output systems. In this paper we remove this restriction by adding to the reduced-order observer an output filter and a single dynamic scaling parameter. We show that this method can be applied to systems with unknown parameters, leading to a new class of adaptive controllers. As an application, we consider two examples: an induction motor with unknown load and a longitudinal controller for an aircraft with unknown aerodynamic properties.