Results 231 to 240 of about 634,139 (266)
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ABSOLUTE STABILITY OF TIME-VARYING NONLINEAR CONTROL SYSTEM
Acta Mathematica Scientia, 1999In the paper, two classes of time-varying, finite-dimensional nonlinear control systems are considered. Some definitions of absolute stability of the control system are given. Next, sufficient conditions of absolute stability of these control systems are formulated and proved. In the proofs of the main results the analogue of the variation of constants
Xiao, Dongmei, Deng, Zongqi
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Controllability and observability of linear time varying singular systems
IEEE Transactions on Automatic Control, 1999Summary: Controllability and observability of analytically solvable linear time-varying singular systems are considered. Our analysis includes the possible impulsive zero-input response. Based on the definitions of controllability and observability naturally extended from the ones adopted in the time-invariant setting, sufficient and necessary ...
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Supervisory Control of Uncertain Linear Time-Varying Systems
IEEE Transactions on Automatic Control, 2011We consider the problem of adaptively stabilizing linear plants with unknown time-varying parameters in the presence of noise, disturbances, and unmodeled dynamics using the supervisory control framework, which employs multiple candidate controllers and an estimator based switching logic to select the active controller at every instant of time.
Linh Vu, Daniel Liberzon
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Simultaneous controller design for time-varying linear systems
Systems & Control Letters, 2011zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Tianqiu Yu, Han Yan
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Controllability of time‐varying fractional dynamical systems with prescribed control
Mathematical Methods in the Applied SciencesThe study of this article deals with the controllability results for time‐varying fractional dynamical systems in terms of Caputo‐type fractional derivatives having a prescribed or predetermined control. We demonstrate the controllability results for time‐varying linear fractional dynamical systems using Gramian technique and fractional calculus ...
P. Karthiga +2 more
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Structurally variable control of time-varying Lurie systems
International Journal of Control, 2016ABSTRACTThis poses and solves the problem of structurally variable control synthesis for time-varying Lurie systems, which has both theoretical and engineering significance. A theorem on absolute stability of a set related to Lurie systems solves the problem.
Lyubomir T. Gruyitch +3 more
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Data-Driven Control of Linear Time-Varying Systems
2020 59th IEEE Conference on Decision and Control (CDC), 2020An identification-free control design strategy for discrete-time linear time-varying systems with unknown dynamics is introduced. The closed-loop system (under state feedback) is parametrised with data-dependent matrices obtained from an ensemble of input-state trajectories collected offline.
Benita Nortmann, Thulasi Mylvaganam
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Aspects of controllability and observability for time-varying PDE systems
2012 American Control Conference (ACC), 2012There are many industrial and biological reaction-diffusion systems which exhibit time-varying features where certain parameters of the system change during the process. The underlying transport-phenomena are often modelled using parabolic partial differential equations (PDEs) with time-varying coefficients which describe the dynamics of the process ...
James Ng +2 more
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Adaptive control for a class of nonlinear time-varying systems
Proceedings of the 2001 American Control Conference. (Cat. No.01CH37148), 2001Adaptive control for nonlinear time-varying systems is of both theoretical and practical importance. We present an adaptive control methodology for a class of nonlinear systems with a time-varying structure where radial basis function neural networks are used as on-line approximators.
Yixin Diao, Kevin M. Passino
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Stability of Networked Control Systems with Time-Varying Delays
IEEE Communications Letters, 2007A robust Smith predictor is proposed to compensate for the round trip delay of networked control systems (NCSs); An analytical TCP model is adopted. We show that stability of the closed-loop system is guaranteed up to some maximum upper bound of the round trip ...
Chun-Hsiung Chen +2 more
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