Showing papers in "European Journal of Control in 2011"

TL;DR: A framework of system approximation that applies to both discrete and continuous systems and contains a hierarchy of approximation metrics between two systems that quantify the quality of the approximation, and captures the established notions in computer science as zero sections.

TL;DR: This presentation provides an overview of smart grids and recent advances in distributed sensing, modeling, and control, particularly at both the high-voltage power grid and at consumer level that may contribute toward the development of an effective, intelligent, distributed control of power system networks.

TL;DR: This paper considers several interconnected ISS systems supplied with ISS Lyapunov functions defined in the dissipative form and provides a condition of a small gain type under which this construction is possible and describes a method of an explicit construction of such an ISS LyAPunov function.

TL;DR: Coordinated distributed systems are defined for linear systems, for Gaussian systems, and for discrete-eventsystemsandanalgebraic-geometriccharacterization and a specific control synthesis procedure is presented.

TL;DR: How system identification does that by amalgamating concepts, features and methods from other fields by describing encounters with four areas in systems theory and engineering: Networked Systems, Particle Filtering Techniques, Sparsity and Compressed Sensing, and Machine Learning.

TL;DR: A consensus-based estimator is designed to improve the detectability and isolability of faults affecting variables shared among different subsystems, andoretical results are provided to characterize the detection and isolation capabilities of the proposed distributed scheme.

TL;DR: A nonlinear robust control strategy designed for underactuated mechanical systems is proposed in order to solve the path tracking problem for a quadrotor unmanned aerial vehicle.

TL;DR: In this paper, the second Euler-Lagrange necessary optimality condition for optimal trajectories of variational problems on time scales was shown to be equivalent to the Noether theorem.

TL;DR: This paper addresses the application of observer-based control techniques for the adaptive optics system of the LBT telescope by focusing on the use of Kalman and H∞ filters to estimate the temporal evolution of phase perturbations due to the atmospheric turbulence and the telescope vibrations acting on tip/tilt modes.

TL;DR: This paper shows how a whole class of random generation mechanisms can descend in an almost direct way from classical stability analysis tests, and shows how general-purpose random sampling schemes can be adapted to the problem at hand.

TL;DR: This paper defines a reinforcement learning (RL) approach to call control algorithms in links with variable capacity supporting multiple classes of service capable of controlling classlevel quality of service in terms of both blocking and dropping probabilities.

TL;DR: This article is devoted to some applications of Hamilton–Jacobi inequalities for control problems of ordinary and impulsive dynamical systems, and the study of necessary and sufficient global optimality conditions.

TL;DR: The convergence of the value function to the solution of a limit Cauchy problem for a Hamilton-Jacobi equation whose Hamiltonian is a suitable average of the initial one is proved.

TL;DR: Improved performance of a closed-loop AO system with Piezo-driven Deformable Mirror and high-sampling-rate Wavefront Sensor is improved by means of model-based control and the variance of the residual error has been reduced.

TL;DR: Numerical and experimental results of the practical stability and practical stabilizability of a class of nonlinear systems with multiple delays and a ``practical exponential estimate" of the solution is obtained.

TL;DR: It is shown that a second order approximation of the eigenmode dynamics is appropriate for low-order modes even when additional system components as delays, digital-to-analog converters, current drivers, actuator-magnet efficiencies, capacitive sensors, and analog- to-digital converters are included.

TL;DR: This paper discusses a new method for computing the spectrum of retarded time-delay systems based on the lifting technique, and considers applying modified FSFH approximation, developed in the fast-lifting approach to sampled-data systems.

TL;DR: Converse Lyapunov theorems for a finite family of pairwise commuting semistable systems are developed and some robustness results for semistability of switched systems are derived.

TL;DR: A new nose landing gear model including an actuator model and a simple tire/road interface description approximating the Pacejka model is presented to allow the active damping of the shimmy phenomenon.

TL;DR: It is shown that the model is fairly well identifiable and the newly inserted model components significantly improve the quality of fit between the measured and computed model outputs.

TL;DR: Two motion primitives that allow a mobile sensor to explore the features of an unknown scalar field and will provide the foundation of a theory of control for information acquisition in the exploration of unknown fields by means of mobile point sensors.

TL;DR: Four specific problems in cancer biology that are amenable to study using probabilistic methods are discussed, namely: reverse engineering gene regulatory networks, constructing context-specific gene Regulatory networks, analyzing the significance of expression levels for collections of genes, and discriminating between drivers and passengers.

TL;DR: An algorithm is suggested that, based on a simplified model of the shell dynamics, tunes the controller parameters by means of an automatic procedure, as a replacement for a manual procedure based on the operator skill.

TL;DR: It is shown that the LQG controller is an integral controller when the DM has no dynamics, there is no computational delay (the total loop delay is one frame), and the PSD of the incident wavefront decreases by f –2 at all frequencies.

TL;DR: This work examines the method, several of its consequences including the possibility to make the necessary condition sufficient, and state some open problems related to the method.

TL;DR: A novel switching control design is proposed, inspired by the structural similarity between chained nonholonomic systems and multiple-integrator systems, to make u 1 to be piecewise constant, which renders the rest of the states a chain of constant weighted integrators.

TL;DR: This is the first time that this stationary filtering problem for continuous-time linear systems subject to Markovian jumps in the parameters (LSMJP) and additive noise with no knowledge of the Markov jump parameters is considered in the literature.

TL;DR: An innovative local control approach is introduced that significantly improves the high spatial frequency performance without the robustness challenges associated with a global control approach and is demonstrated to provide excellent command response suitable for an adaptive optics outer loop.

TL;DR: The design of a standard H ∞ robust controller for stabilizing the PEMFC system is described, and fixed-order robust control and robust PID control algorithms for controller simplification are applied.

TL;DR: This paper will illustrate how tools in robust control theory and optimization can be integrated towards such unified theory by focusing on their applications in biology, physics, network design, and electric grid.