Search results for "Asynchronous measurement"

showing 3 items of 3 documents

Time-varying Sampled-data Observer with Asynchronous Measurements

2019

International audience; In this paper a time-varying observer for a linear continuous-time plant with asynchronous sampled measurements is proposed. The observer is contextualized in the hybrid systems framework providing an elegant setting for the proposed solution. In particular some theoretical tools are provided, in terms of LMIs, certifying asymptotic stability of a certain compact set where the estimation error is zero. We consider sampled asynchronous measurements that occur at arbitrary times in a certain window with an upper and lower bound. The design procedure, that we propose for the selection of the time-varying gain, is based on a constructive algorithm that is guaranteed to f…

0209 industrial biotechnologyObserver (quantum physics)02 engineering and technologyUpper and lower boundsElectronic mail[SPI]Engineering Sciences [physics]020901 industrial engineering & automationSample data observerExponential stabilitySettore ING-INF/04 - AutomaticaControl theorylinear matrix inequalities (LMIs)linear matrixElectrical and Electronic Engineeringlinear matrix inequalitiesMathematicsLinear systemlinear systemshybrid systemssampled-data observerComputer Science ApplicationsCompact spaceControl and Systems EngineeringAsynchronous communicationHybrid systemhybrid systemDiscrete asynchronous measurementdiscrete asynchronous measurementsdiscrete asynchronous
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A time-varying observer for linear systems with asynchronous discrete-time measurements

2017

International audience; In this paper we propose a time-varying observer for a linear continuous-time plant with asynchronous discrete-time measurements. The proposed observer is contextualized in the hybrid systems framework providing an elegant setting for the proposed solution. In particular some theoretical tools are provided, in terms of LMIs, certifying asymptotic stability of a certain compact set where the estimation error is zero. Moreover the case of asynchronous measurements is considered, i.e. when the measurements are not provided in well defined time instants, but they occur at an arbitrary time in a certain time interval. A design procedure based on the numerical solution of …

0301 basic medicine0209 industrial biotechnologyObserver (quantum physics)Computer scienceLinear system02 engineering and technologyInterval (mathematics)Sampled-data observerdiscrete asynchronous measurement[SPI.AUTO]Engineering Sciences [physics]/Automatic03 medical and health sciences030104 developmental biology020901 industrial engineering & automationSettore ING-INF/04 - AutomaticaExponential stabilityDiscrete time and continuous timeAsynchronous communicationControl theoryHybrid systemhybrid systemlinear systemlinear matrix inequalities
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A hybrid observer for localization of mobile vehicles with asynchronous measurements

2019

The aim of this paper is the design of a hybrid nonlinear observer for mobile vehicles. The main problem is that position and velocity measurements are provided with a very low frequency, and the time between two consecutive measurements could be not constant, but it could vary randomly within a certain interval of time. For this reason the proposed observer has been contextualized in the hybrid systems framework. The convergence analysis of the estimation error has been carried out, and the sensitivity analysis has been performed in order to evaluate the bound of the estimation error when the measurements are biased and/or noisy. Simulation and experimental results, carried out on a mobile…

Asynchronous measurementMathematics (miscellaneous)Settore ING-INF/04 - Automaticaevent-driven and time-driven systemControl and Systems EngineeringControl theoryAsynchronous communicationComputer scienceinertial navigationElectrical and Electronic EngineeringObserver (physics)Inertial navigation systemhybrid observerAsian Journal of Control
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