Results 271 to 280 of about 30,531,215 (308)
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Output regulation of time-varying systems
Systems & Control Letters, 2006zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Akira Ichikawa, Hitoshi Katayama
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2014
A large number of physical systems are nonstationary. Identification of nonstationary processes have been widely studied in the literature for linear systems. Traditional techniques for identifying linear time-varying (LTV) systems are mostly based on the recursive weighted least squares methods (see [106], [22], [83], [34], [124]).
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A large number of physical systems are nonstationary. Identification of nonstationary processes have been widely studied in the literature for linear systems. Traditional techniques for identifying linear time-varying (LTV) systems are mostly based on the recursive weighted least squares methods (see [106], [22], [83], [34], [124]).
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Inversion of nonlinear time-varying systems
IEEE Transactions on Automatic Control, 1993Summary: A new procedure for inverting nonlinear systems is proposed, which presents some computational advantages when applied to flexible robot arms or, more generally, to mechanical structures. This procedure is presented in a general setting, for nonlinear time-varying systems.
DI BENEDETTO, MARIA DOMENICA +1 more
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Bull. EATCS, 1999
Summary: We prove that periodically time-varying H systems with four components and with splicing rules of a small size (as the length of the splicing sites) generate all recursively enumerable languages. This improves a result and partially solves an open problem from \textit{G. Păun}, \textit{G. Rozenberg} and \textit{A. Salomaa} [DNA computing.
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Summary: We prove that periodically time-varying H systems with four components and with splicing rules of a small size (as the length of the splicing sites) generate all recursively enumerable languages. This improves a result and partially solves an open problem from \textit{G. Păun}, \textit{G. Rozenberg} and \textit{A. Salomaa} [DNA computing.
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Time-Varying Regular Bilinear Systems
SIAM Journal on Control and Optimization, 2008The theory of infinite-dimensional systems introduced and developed by Salamon [Trans. Amer. Math. Soc., 300 (1987), pp. 383-431] and Weiss [SIAM J. Control Optim., 27 (1989), pp. 527-545] has been recently applied for various systems; see, e.g., the Jacob-Partington survey [Current Trends in Operator Theory and its Applications, Birkhauser, Boston ...
Hamid Bounit, Abdelali Idrissi
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Random access systems with a time varying channel
IEEE INFOCOM '89, Proceedings of the Eighth Annual Joint Conference of the IEEE Computer and Communications Societies, 1989A random multiple-access system which uses a collision resolution algorithm for accessing a common time-varying channel is considered. The channel is assumed to be in one of two states. In each state the channel is characterized by a general discrete memoryless channel, and the transitions between the two states are assumed to be Markovian.
Kelvin K. Y. Ho +2 more
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Backstepping with bounded feedbacks for time-varying systems
Proceedings of the 44th IEEE Conference on Decision and Control, 2004A new extension of the backstepping technique which applies to time-varying nonlinear systems is proposed. Thereby this can be utilized in particular for solving problems of global tracking. A family of time-varying nonlinear systems is globally uniformly asymptotically stabilized by bounded feedbacks.
Frédéric Mazenc, Samuel Bowong
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ANALYSIS OF TIME VARYING SYSTEMS USING TIME VARYING S-TRANSFORMS AND TIME VARYING Z-TRANSFORMS
IFAC Proceedings Volumes, 2002Abstract This paper deals with the analysis of continuous and discrete time varying systems using two unusual representations. These representations, based on time varying s-transform and time-varying z -transform notions, prove to be highly efficient in the field of automatic control.
Aitor GARCIA ITURRICHA +2 more
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Persistent identification of time-varying systems
IEEE Transactions on Automatic Control, 1997Introducing the concept and intrinsic measures of persistent identification (PI) errors first for linear time-invariant systems (LTIS) as a limiting case, upper and lower bounds for these measures are obtained and explicitly computed for several typical classes of prior uncertainty sets.
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Time-varying Lyapunov functions for linear time-varying systems
International Journal of Control, 1986Abstract Adopting special time-varying Lyapunov-function candidates, it is shown that the Popov criterion ensures large-scale asymptotic stability for linear time-varying feedback systems with relaxed conditions on the time-varying gain fc(t). The main result is that li(t)/k(t) need not be bounded for all finite t and need be bounded only when ibecomes
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