Showing papers in "Systems & Control Letters in 2008"

TL;DR: This work designs controllers using a backstepping method for parabolic PDEs and shows that the proposed method can be used for boundary control of the a Korteweg-de Vries-like third order PDE.

TL;DR: A positive constant is found which determines an upper bound on the sampling intervals for which the stability of the closed loop is guaranteed and is applied to the analysis and state-feedback stabilization of nonlinear time-varying impulsive systems.

TL;DR: This paper performs a model transformation and turns the original system into a reduced-order system, and presents conditions under which all agents reach consensus with the desired H ∞ performance.

TL;DR: By employing a linear matrix inequality method, it is proved that all the nodes in the network achieve average consensus asymptotically for appropriate communication delays if the network topology is connected.

TL;DR: Finite-time stability and stabilization of retarded-type functional differential equations are developed and an explicit finite-time controller for scalar linear systems and for the chain of integrators with delays in the input is given.

TL;DR: Experimental examples are given to show the performances and some limits of the proposed approach to observer design for a class of Lipschitz nonlinear dynamical systems and to illustrate good performances on robustness to measurement errors by avoiding high gain.

TL;DR: In this article, the problem of H ∞ filtering in networked control systems (NCSs) with multiple packet dropouts is studied, and a new formulation enables assigning separate dropout rates from the sensors to the controller and from the controller to the actuators.

TL;DR: It is shown that a passive switched system is stable in the sense of Lyapunov, and asymptotic stability is reached if all subsystems are asymPTotically detectable.

TL;DR: The error in estimating the derivative(s) of a noisy signal by using a high-gain observer by using the infinity norms of the noise and a derivative of the signal is studied and quantified.

TL;DR: An H ∞ approach to a remote control problem where the communication is constrained due to the use of a shared channel is proposed and an analysis on the loss probabilities of the messages to accomplish stabilization is carried out.

TL;DR: It is shown that only input-to-state practical stability can be ensured in general for closed-loop min–max MPC systems; and new conditions for guaranteeing ISS are derived, using a dual-mode approach.

TL;DR: A open-loop stabilization strategy based on dwell time computation and designed from the solution of what is called nonlinear Lyapunov–Metzler inequalities from which the stability condition is expressed.

TL;DR: By virtue of a corollary of Barbalat’s Lemma, the convergence of the proposed controller for the resulting closed-loop system is proved theoretically.

TL;DR: To make the theory more understandable as well as to avoid complicated notations, the underlying hybrid stochastic differential equations are restricted to a relatively simple form which can be developed to cope with much more general equations without any difficulty.

TL;DR: In this article, a deterministic attitude estimation problem for a rigid body in a potential field, with bounded attitude and angular velocity measurement errors is considered, and an attitude estimation algorithm that globally minimizes the attitude estimation error is obtained.

TL;DR: The results provide great convenience to the computation and analysis of the solutions to this family of equations, and can perform important functions in many analysis and design problems in linear system theory.

TL;DR: A coordination problem where the objective is to steer a group of agents to a formation that translates with a prescribed reference velocity is studied and an adaptive design with which the other agents reconstruct the reference velocity and recover the desired formation is developed.

TL;DR: Sufficient conditions for robust static output feedback stabilizing controller designs are given in terms of solutions to a set of linear matrix inequalities, and the results are extended to H2 and H∞static output feedback controller designs.

TL;DR: A simple proof of the Maximum Principle for smooth hybrid control systems is given by reducing the hybrid problem to an optimal control problem ofPontryagin type and then by using the classical Pontryagin Maximum Principle.

TL;DR: An algorithm for the regulation via state feedback of a class of linearly parameterised systems in feedback form that allows for prescribed dynamics to be assigned to the estimation error, leading to a modular scheme which is easier to tune than the one obtained from Lyapunov redesign and practically recovers the performance of the known-parameter controller.

TL;DR: In this article, a structured polynomial parameter-dependent approach is proposed for robust H 2 filtering of linear uncertain systems, where the focus is on designing a robust filter such that the filtering error system is robustly asymptotically stable and has a guaranteed estimation error variance for the entire uncertainty domain.

TL;DR: The system is transformed to an n-step ahead predictor, based on which an adaptive control employing the predicted future states has been proposed, and the discrete Nussbaum gain is exploited to overcome the difficulty caused by unknown control directions.

TL;DR: This paper examines the possibility to stabilize a switched linear control system with a static linear feedback with a stronger version of stabilization, namely, stabilization maintained when the feedback gain is increased.

TL;DR: This paper provides an LMI-based procedure for the construction of a linear anti-windup gain acting on the controller state equation such that regional closed-loop stability is guaranteed and suitable performance measures are optimized.

TL;DR: Noise can make a given system whose solutions grow exponentially become a new systemwhose solutions will grow at most polynomially, and it is revealed that the noise can suppress or expresses exponential growth.

TL;DR: Invariance principles and sufficient conditions for asymptotic stability for switching systems are given and multiple Lyapunov-like functions are used, and dwell-time, persistent dwell- time, and weak Dwell-time switching signals are considered.

TL;DR: A cooperative control algorithm to stabilize symmetric formations to motion around closed curves suitable for mobile sensor networks and a planar particle model with decentralized steering control subject to limited communication is provided.

TL;DR: A singular perturbation model is derived which makes this time-scale separation explicit and proves the validity of the reduced-model approximation on the infinite time interval.

TL;DR: The proposed output feedback control law asymptotically stabilizes the open loop system with a larger domain of attraction and achieves better disturbance attenuation under energy and magnitude bounded disturbances.

TL;DR: An analysis of the L 2 gain and L ∞ performance for singular linear systems under actuator saturation and assessment of the disturbance tolerance and rejection capabilities of the system under a given state feedback law are formulated and solved as LMI constrained optimization problems.