Results 241 to 250 of about 2,626,429 (291)

Reducible linear time-varying control systems†

International Journal of Control, 1971
Linear systems with time-varying coefficients are of great concern in various fields. However, the theoretical treatment is very difficult and very few achievements have been seen so far. In this paper, the discussions are confined to those classes of systems which can be transformed into linear stationary systems.
openaire   +1 more source

Controllability and observability for time‐varying switched impulsive controlled systems

International Journal of Robust and Nonlinear Control, 2010
AbstractThis paper is concerned with the controllability and observability for linear time‐varying switched impulsive systems. First, some new results about the variation of parameters for time‐varying switched impulsive systems are derived.
Zhao, Shouwei, Sun, Jitao
openaire   +2 more sources

Learning control for bilinear parametric systems with time-varying delays and time-varying control gains

Proceeding of the 11th World Congress on Intelligent Control and Automation, 2014
A learning control scheme is designed for first-order bilinear parametric systems with unknown periodically time-varying delays. It is assumed that the common periodicity of unknown time-varying parameter, time-varying delay, and reference signal are known.
null Yunping Sun, null Feng Wei, Jinxu Li, null Yongbo Li   +3 more
openaire   +1 more source

Control algorithm for unknown time-varying systems†

International Journal of Control, 1989
A simple algorithm is briefly described for the control of rapidly time-varying unknown systems and its performance is illustrated by several linear and non-linear examples, including plants with unstable input zeros. The algorithm uses local flow behaviour and exhibits ‘one-step-adaptive model reference-like’ performance.
H. B. PENFOLD, R. J. EVANS
openaire   +1 more source

Adaptive Control of Time-Varying and Nonlinear Systems

1994
This chapter contains theoretical concepts that are more advanced than those used in the preceding chapters. These concepts and several references are used to show that the preceding adaptive controllers still maintain stability with respect to boundedness even for certain classes of time-varying and nonlinear systems.
Howard Kaufman, Izhak Bar-Kana, Kenneth Sobel   +2 more
openaire   +1 more source

Bayesian adaptive control of time varying systems

[1992] Proceedings of the 31st IEEE Conference on Decision and Control, 2005
Linear stochastic systems corrupted by Gaussian white noise disturbances are considered. An elementary proof of boundedness of the mean square response under a certainty equivalence minimum variance control law is described. The assumptions used in this ideal case indicate that the usual smallness in the mean conditions used in adaptive control could ...
R. Ravikanth, S.P. Meyn, L.J. Brown
openaire   +1 more source

Adaptive Control of Fast Time-Varying Systems

IFAC Proceedings Volumes, 1992
Abstract In this paper, the state of the art and a perspective about adaptive control of fast time-varying systems are given. The emphasis is on the prediction of fast time-varying parameters. It is shown that the techniques for tracking and predicting fast time-varying parameters are based on the knowledge about variation in the parameters.
Zheng Li, H. Unbehauen
openaire   +1 more source

Controllability of time‐varying fractional dynamical systems with prescribed control

Mathematical Methods in the Applied Sciences
The 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, S. M. Sivalingam, V. Govindaraj   +2 more
openaire   +2 more sources

Robust nonlinear control of time-varying systems

Proceedings of 1995 American Control Conference - ACC'95, 2005
For a class of SISO nonlinear time-varying systems, we present a robust output feedback control scheme. The control scheme removes some of the structural constraints so as to enlarge the class of systems that can be handled by recently developed nonlinear control schemes. The enlargement can be seen via four aspects: 1) all the unknown coefficients and
J.Y. Zhu, S. Martindale, D.M. Dawson
openaire   +1 more source

Repetitive Control for Linear Time Varying Systems

Dynamic Systems and Control, 2002
Repetitive control that asymptotically tracks or rejects periodic signals has been widely used in many applications. For linear time invariant system, this problem has been thoroughly studied and solved. This paper presents the analysis and synthesis of repetitive control algorithms to track or reject periodic signals for linear time varying systems ...
Zongxuan Sun, Tsu-Chin Tsao
openaire   +1 more source