Results 271 to 280 of about 1,016,114 (310)
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Feedback control with Posicast
IEEE Transactions on Industrial Electronics, 2003An alternative way to use Posicast to damp oscillations in lightly damped control systems is proposed in this paper. Specifically, it is suggested that the Posicast technique be used within a feedback system, instead of the classical feedforward configuration.
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Symbolic feedback control for navigation
IEEE Transactions on Automatic Control, 2006We discuss the generation of symbolic feedback control sequences for navigating a sparsely-described and uncertain environment, together with the problem of sensing landmarks sufficiently well to make feedback meaningful. We explore the use of a symbolic control approach for mitigating the lack of a detailed map of the environment and for reducing the ...
Sean B. Andersson +1 more
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ISA Transactions, 2007
In this work a control structure capable of handling controllability problems, which emerge from the presence of constraints, and improve the performance of the system by coordinating the use of several manipulated variables is introduced. In this scheme, the primary manipulated variable is used to handle the transient response while the auxiliary ...
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In this work a control structure capable of handling controllability problems, which emerge from the presence of constraints, and improve the performance of the system by coordinating the use of several manipulated variables is introduced. In this scheme, the primary manipulated variable is used to handle the transient response while the auxiliary ...
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Adaptive reservations for feedback control
49th IEEE Conference on Decision and Control (CDC), 2010In this paper, we start from an assigned control law with known probability distributions of its execution time. Our goal is to identify an optimised scheduling policy that allows us to strike an acceptable tradeoff between control performance and consumption of computation resource.
Fontanelli, Daniele +2 more
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Feedback control for clinicians
Journal of Clinical Monitoring and Computing, 2013Although feedback control and automation has revolutionized many fields of human activity, it has yet to have a significant impact on healthcare, particularly when a patient is in the loop. Although there have been a number of studies concerned with closed-loop control of anesthesia, they have yet to have an impact on clinical practice.
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ISA Transactions, 2003
In this work a new method for designing predictive controllers for linear single-input/single-output systems is presented. It uses only one prediction of the process output J time intervals ahead to compute the correspondent future error. Then, the predictive feedback controller is defined by introducing a filter which weights the last w predicted ...
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In this work a new method for designing predictive controllers for linear single-input/single-output systems is presented. It uses only one prediction of the process output J time intervals ahead to compute the correspondent future error. Then, the predictive feedback controller is defined by introducing a filter which weights the last w predicted ...
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Feedback control in anaesthesia
International journal of clinical monitoring and computing, 1997This review considers the some of the methods of automatic control which are usable in medicine. The features of each type of control system are explained and the advantages and disadvantages summarised. The author has attempted to maintain a balance between what is possible with the excellence of modern engineering, and what is feasible in the ...
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On Receding Horizon Feedback Control
IFAC Proceedings Volumes, 1981Abstract Receding horizon feedback control (RHFC) was originally introduced as an easy method for designing stable state-feedback controllers for linear systems. Here we generalize those results so they will apply to the control of nonlinear autonomous systems, and we develop a performance index which is minimized by the RHFC (inverse optimal control
C. C. Chen, L. Shaw
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FEEDBACK CONTROL OF THE CHEMOTHERAPY OF HIV
International Journal of Bifurcation and Chaos, 2000Using a model which describes the interaction of the immune system with the human immunodeficiency virus (HIV), we introduce a feedback control strategy of chemotherapy in an early treatment setting, where the control represents the percentage of effect chemotherapy has on the viral production.
José Álvarez-Ramírez +2 more
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Controllability Subspaces and Feedback Simulation
SIAM Journal on Control and Optimization, 1975The concepts of input chain and controllability chain are introduced, and the structure of controllability subspaces of a linear system is investigated. It is shown that the input and controllability chains are the fundamental feedback invariants of a linear system.The feedback simulation problem (a generalization of the feedback equivalence problem ...
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