A dynamic high gain observer for a class of MIMO non triangular systems
نویسندگان
چکیده
Abstract: A dynamic high gain like observer is proposed for a class of MIMO nonlinear systems that are observable for any inputs. Two main results are worth to be mentioned. The first one is related to the considered class of systems that is composed by cascade subsystems and each subsystem is associated to a subset of the outputs. Each subsystem assumes a triangular dependence on the state of that subsystem itself but may depend on the state of all other subsystems. Hence, the contribution is to extend the results existing in the literature in that more interconnections between the subsystems are allowed. The second important result lies in the nature of the observer gain which involves a scalar time-varying parameter governed by some scalar Riccati equation. Simulation results are given in order to highlight the performances of the proposed observer, namely its exponential convergence and a good behavior with respect to noise measurements.
منابع مشابه
A Variable Structure Observer Based Control Design for a Class of Large scale MIMO Nonlinear Systems
This paper fully discusses how to design an observer based decentralized fuzzy adaptive controller for a class of large scale multivariable non-canonical nonlinear systems with unknown functions of subsystems’ states. On-line tuning mechanisms to adjust both the parameters of the direct adaptive controller and observer that guarantee the ultimately boundedness of both the tracking error and tha...
متن کاملObserver Based Fuzzy Terminal Sliding Mode Controller Design for a Class of Fractional Order Chaotic Nonlinear Systems
This paper presents a new observer based fuzzy terminal sliding mode controller design for a class of fractional order nonlinear systems. Robustness against uncertainty and disturbance, the stability of the close loop system and the convergence of both the tracking and observer errors to zero are the merits of the proposed the observer and the controller. The high gain observer is applied to es...
متن کاملNew Optimal Observer Design Based on State Prediction for a Class of Non-linear Systems Through Approximation
This paper deals with the optimal state observer of non-linear systems based on a new strategy. Despite the development of state prediction in linear systems, state prediction for non-linear systems is still challenging. In this paper, to obtain a future estimation of the system states, initially Taylor series expansion of states in their receding horizons was achieved to any specified order an...
متن کاملAdaptive Consensus Control for a Class of Non-affine MIMO Strict-Feedback Multi-Agent Systems with Time Delay
In this paper, the design of a distributed adaptive controller for a class of unknown non-affine MIMO strict-feedback multi agent systems with time delay has been performed under a directed graph. The controller design is based on dynamic surface control method. In the design process, radial basis function neural networks (RBFNNs) were employed to approximate the unknown nonlinear functions. S...
متن کامل