Results 31 to 40 of about 945,100 (334)

Funnel control of nonlinear systems [PDF]

open access: yesMathematics of Control, Signals, and Systems, 2021
AbstractTracking of reference signals is addressed in the context of a class of nonlinear controlled systems modelled byr-th-order functional differential equations, encompassinginter aliasystems with unknown “control direction” and dead-zone input effects.
Thomas Berger   +2 more
openaire   +2 more sources

State dependent NGMV control of delayed piecewise affine systems [PDF]

open access: yes, 2009
A Nonlinear Generalized Minimum Variance (NGMV) control algorithm is introduced for the control of delayed piecewise affine (PWA) systems which are an important subclass of hybrid systems.
Grimble, M.J., Pang, Y.
core   +2 more sources

A Unified Approach of Controller Design and System Identification for Optimal Control of Single-Input Nonlinear Systems

open access: yesSICE Journal of Control, Measurement, and System Integration, 2018
This paper presents a novel unified approach of controller design and identification for unknown input affine nonlinear systems. An issue with obtaining the best performance of optimal control is that identification errors degrade control performance ...
Yuji Ito   +3 more
doaj   +1 more source

The Investigation of Nonlinear Polynomial Control Systems

open access: yesМоделирование и анализ информационных систем, 2021
The paper considers methods for estimating stability using Lyapunov functions, which are used for nonlinear polynomial control systems. The apparatus of the Gro¨bner basis method is used to assess the stability of a dynamical system. A description of the
Sergei Nikolaevich Chukanov   +1 more
doaj   +1 more source

Suppression of Base Excitation of Rotors on Magnetic Bearings

open access: yesInternational Journal of Rotating Machinery, 2007
This paper deals with rotor systems that suffer harmonic base excitation when supported on magnetic bearings. Magnetic bearings using conventional control techniques perform poorly in such situations mainly due to their highly nonlinear characteristics ...
Steven Marx, C. Nataraj
doaj   +1 more source

Recent advances on filtering and control for nonlinear stochastic complex systems with incomplete information: A survey [PDF]

open access: yes, 2012
This Article is provided by the Brunel Open Access Publishing Fund - Copyright @ 2012 Hindawi PublishingSome recent advances on the filtering and control problems for nonlinear stochastic complex systems with incomplete information are surveyed.
Liang, J, Liu, Y, Shen, B, Wang, Z
core   +3 more sources

Controllability in nonlinear systems

open access: yesJournal of Differential Equations, 1973
AbstractIn this paper we obtain an explicit expression for the reachable set for a class of nonlinear systems. This class is described by a chain condition on the Lie algebra of vector fields associated with each nonlinear system. These ideas are used to obtain a generalization of a controllability result for linear systems in the case where ...
openaire   +2 more sources

Adaptive control of nonlinear underwater robotic systems [PDF]

open access: yesModeling, Identification and Control, 1991
The problem of controlling underwater mobile robots in 6 degrees of freedom (DOF) is addressed. Uncertainties in the input matrix due to partly known nonlinear thruster characteristics are modeled as multiplicative input uncertainty.
Thor I. Fossen, Svein I. Sagatun
doaj   +1 more source

Quantum feedback with weak measurements [PDF]

open access: yes, 1999
The problem of feedback control of quantum systems by means of weak measurements is investigated in detail. When weak measurements are made on a set of identical quantum systems, the single-system density matrix can be determined to a high degree of ...
A. Blaquiere   +54 more
core   +2 more sources

Approximately bisimilar symbolic models for nonlinear control systems [PDF]

open access: yes, 2007
Control systems are usually modeled by differential equations describing how physical phenomena can be influenced by certain control parameters or inputs.
Girard, Antoine   +2 more
core   +5 more sources

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