Results 231 to 240 of about 203,329 (265)
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OBSERVERS FOR DISTRIBUTED-PARAMETER SYSTEMS
IFAC Proceedings Volumes, 1989This paper introduces a series of problems on state estimation for parabolic systems on the basis of measurements generated by sensors in the presence of unknown but bounded disturbances. Observability issues and relations to stochastic filtering schemes for distributed processes are also discussed.
Kurzhanski, A.B., Khapalov, A.Y.
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A “practical” observer for nonlinear systems
2017 IEEE 56th Annual Conference on Decision and Control (CDC), 2017In this paper, a 'practical' observer for nonlinear systems is given. Namely, it is shown that if the output and its time derivatives up to a sufficiently high finite order are bounded and the initial estimation error is sufficiently small, then the proposed observer is such that the estimation error can be made arbitrarily small for all sufficiently ...
Menini, Laura +2 more
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Observation and biological systems
Bulletin of Mathematical Biology, 1977A number of apparently different lines of inquiry into fundamental biological processes point to the central role played by the notion of observation in the theory of biological systems. Not only do we use the results of our own observations to obtain the system descriptions which are the starting-points for an understanding of biological processes ...
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A Global Paleoclimate Observing System
Science, 2001A major obstacle to producing reliable predictions of climate change and its impacts is a lack of data on time scales longer than the short instrumental record. Recently initiated climate observation programs will need to be continuously operated for at least 50 years before they begin to provide information that is relevant to this problem.
Alverson, K +8 more
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Design of Observers for Hybrid Systems
2002A methodology for the design of dynamical observers for hybrid plants is proposed. The hybrid observer consists of two parts: a location observer and a continuous observer. The former identifies the current location of the hybrid plant, while the latter produces an estimate of the evolution of the continuous state of the hybrid plant.
A. Balluchi +3 more
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Local observer for infinitesimally observable nonlinear systems
International Journal of Control, 2013In this article, we present a local observer based on infinitesimal observability along trajectories. The gain of this observer derives from a dynamical Lyapunov equation. The inputs for which the observer converges are those which render the system observable at each point of the Ω-limit of the unknown trajectory (infinitesimal observability at ...
Hassan Hammouri +2 more
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CoEvolution of Effective Observers and Observed Multi-agents System
2005This paper elaborates upon an idea and a development introduced and presented by Bersini in [1]. Roughly, by observing the search space of a combinatorial problem in a “clever” way, it can be drastically reduced. In order to discover this “clever way”, a second search process has to be engaged in the space of the observables. So two Genetic Algorithms (
Philemotte, Christophe, Bersini, Hugues
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Observability and observers for nonlinear systems with time delays
Kybernetika, 2002Summary: Basic properties on linearization by output injection are investigated in this paper. A special structure is sought which is linear up to a suitable output injection and under a suitable change of coordinates. It is shown how an observer may be designed using theory available for linear time delay systems.
Marquez Martinez, Luis-Alejandro +2 more
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Observers and Observer-Based Control for Descriptor Systems Revisited
IEEE Transactions on Automatic Control, 2014This technical note is devoted to the observers and observer-based control for linear descriptor systems. First, the complete proof of necessary and sufficient conditions for the existence of Luenberger observers for an arbitrary order is given, then the existence conditions for the controller based on these observers are presented in the LMI ...
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