Articles with "systems unknown" as a keyword



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Extended adaptive optimal control of linear systems with unknown dynamics using adaptive dynamic programming

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Published in 2019 at "Asian Journal of Control"

DOI: 10.1002/asjc.2243

Abstract: Funding information International Graduate Exchange Program of Beijing Institute of Technology; National Natural Science Foundation of China, Grant/Award Number: 61673065 Abstract The extended infinite horizon optimal control problem of continuous time linear systems with unknown… read more here.

Keywords: unknown dynamics; control; adaptive dynamic; systems unknown ... See more keywords
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Robust control of high-order nonlinear systems with unknown measurement sensitivity

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Published in 2020 at "Science China Information Sciences"

DOI: 10.1007/s11432-019-1467-3

Abstract: Recently, considerable attention has been devoted to output feedback control and practical tracking of nonlinear systems [1, 2]. Unfortunately, limitations of sensor techniques can cause sensitivity errors in practical environments. For example, Ref. [3] showed… read more here.

Keywords: sensitivity; unknown measurement; high order; measurement sensitivity ... See more keywords
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NN-based output tracking for more general stochastic nonlinear systems with unknown control coefficients

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Published in 2017 at "International Journal of Automation and Computing"

DOI: 10.1007/s11633-015-0936-4

Abstract: This paper considers the output tracking problem for more general classes of stochastic nonlinear systems with unknown control coefficients and driven by noise of unknown covariance. By utilizing the radial basis function neural network approximation… read more here.

Keywords: stochastic nonlinear; control; unknown control; output tracking ... See more keywords
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Adaptive Multi-Observer Design for Systems with Unknown Long Input Delay

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Published in 2019 at "IFAC-PapersOnLine"

DOI: 10.1016/j.ifacol.2019.12.203

Abstract: Abstract This paper deals with the problem of stabilization of systems with a constant delay in the actuator. The time-delay is unknown and can be considerably long, involving an interesting challenge from the control point… read more here.

Keywords: observer design; design systems; delay; multi observer ... See more keywords
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Linear estimation for discrete-time periodic systems with unknown measurement input and missing measurements.

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Published in 2018 at "ISA transactions"

DOI: 10.1016/j.isatra.2018.11.013

Abstract: This paper considers the estimation problem for periodic systems with unknown measurement input and missing measurements. The missing measurements phenomenon is described by an independent and identically distributed Bernoulli process. The quality of the estimation… read more here.

Keywords: estimation; measurement input; unknown measurement; systems unknown ... See more keywords
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Observer-based control of positive polynomial fuzzy systems with unknown time delay

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Published in 2019 at "Neurocomputing"

DOI: 10.1016/j.neucom.2019.04.016

Abstract: Abstract This paper presents a methodology to investigate the observer-based control for positive nonlinear systems with unknown time delay through analyzing the stability and positivity of positive polynomial fuzzy-model-based (PPFMB) observer-control systems with unknown time… read more here.

Keywords: control; time delay; unknown time; systems unknown ... See more keywords
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Estimator design of switched linear systems under unknown persistent excitation

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Published in 2018 at "Iet Control Theory and Applications"

DOI: 10.1049/iet-cta.2017.0985

Abstract: In this study, the robust estimation problem is investigated for discrete-time switched linear systems with unknown persistent excitation. The robust current estimator is proposed to estimate the real state of the switched systems without the… read more here.

Keywords: switched linear; persistent excitation; systems unknown; linear systems ... See more keywords
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Distributed adaptive tracking control for high-order multi-agent systems with unknown dynamics

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Published in 2017 at "International Journal of Control"

DOI: 10.1080/00207179.2016.1229037

Abstract: ABSTRACT In this paper, we investigate the adaptive tracking problem of high-order multi-agent systems with unknown parameters and unknown nonlinear functions. Under the assumption that the leader is the root of a spanning tree, a… read more here.

Keywords: order multi; agent systems; multi agent; adaptive tracking ... See more keywords
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Functional Observers for Descriptor Systems With Unknown Inputs

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Published in 2023 at "IEEE Access"

DOI: 10.1109/access.2023.3249099

Abstract: This paper addresses the problem of estimating a functional vector for a class of linear time-invariant descriptor systems with unknown inputs. The unknown inputs are considered in both the system dynamics and measurement equations. The… read more here.

Keywords: systems unknown; descriptor systems; unknown inputs; functional observers ... See more keywords
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Advantages of Bilinear Koopman Realizations for the Modeling and Control of Systems With Unknown Dynamics

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Published in 2021 at "IEEE Robotics and Automation Letters"

DOI: 10.1109/lra.2021.3068117

Abstract: Nonlinear dynamical systems can be made easier to control by lifting them into the space of observable functions, where their evolution is described by the linear Koopman operator. This letter describes how the Koopman operator… read more here.

Keywords: control; advantages bilinear; unknown dynamics; realization ... See more keywords
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Delay Robustness of an $\mathcal {L}_1$ Adaptive Controller for a Class of Systems With Unknown Matched Nonlinearities

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Published in 2017 at "IEEE Transactions on Automatic Control"

DOI: 10.1109/tac.2017.2703913

Abstract: This paper studies the delay robustness of an $\mathcal {L}_1$ adaptive controller designed for systems with unknown matched nonlinearities and unknown input-gain matrices. The analysis establishes rigorously the existence of a positive lower bound for… read more here.

Keywords: delay robustness; adaptive controller; mathcal adaptive; robustness mathcal ... See more keywords