Results 221 to 230 of about 2,630,733 (260)
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High-gain adaptive position control
International Journal of Control, 2011High-gain adaptive position control is proposed for a stiff one-mass system (1MS) and an elastic two-mass system (2MS). The control objective is (load-side) position reference tracking and disturbance rejection (of load torques and friction). Position and speed are available for feedback.
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Context-specific adaptation of saccade gain
Experimental Brain Research, 2002Previous studies established that vestibular reflexes can have two adapted states (e.g., gain) simultaneously, and that a context cue (e.g., vertical eye position) can switch between the two states. The present study examined this phenomenon of context-specific adaptationfor horizontal saccades, using a variety of contexts.
Mark, Shelhamer, Richard A, Clendaniel
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Loop gain estimation for adaptive control
Proceedings of the 2000 American Control Conference. ACC (IEEE Cat. No.00CH36334), 2000The identification of a linear discrete-time control system's open-loop gain is addressed. The classical Kalman filter theory for state estimation in linear control systems is extended, and the control system's loop gain and states are jointly estimated. A rigorous analysis of the measurement situation on hand yields explicit formulae for the loop gain'
Meir Pachter, J. Sillence
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Gain Scheduling and Adaptation
2011This chapter introduces gain-scheduling and linear-parameter-varying techniques to address plant variability across the flight envelope. This chapter also introduces the concept of adaptive control and presents a basic model-reference adaptive control design.
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Gaining and losing the thermophilic adaptation in prokaryotes
Trends in Genetics, 2008We studied the evolution of thermophily in prokaryotes using the phylogenetic relationships between 279 bacteria and archaea and their thermophilic amino acid composition signature. Our findings suggest several examples in which the capacity of thermophilic adaptation has been gained or lost over relatively short evolutionary periods throughout the ...
Pere, Puigbò +2 more
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Stable auto-tuning of the adaptation gain for indirect adaptive control
Proceedings of the 2000 American Control Conference. ACC (IEEE Cat. No.00CH36334), 2000Indirect adaptive control is a widely known control sdwme iu which we approxima te parts of the plant dynamics that are used by a feedback controller to cancel the the system nonlinearities. "Approximators" such as linear mappings, polynomials, fuzzy systems, or neural networks can be used.
Hazem N. Nounou, Kevin M. Passino
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A Gain Adaptive Fuzzy Logic Controller
2002We propose a PI-type gain adaptive fuzzy logic controller (GAFLC). Input scaling factors (SFs) of the GA-FLC for error (e) and change of error (?e) are updated on-line, by a single non-linear parameter computed through a unipolar sigmoid function defined on the current process states (e and ?e). The performance of the proposed GA-FLC for step set-point
Rajani K. Mudi +2 more
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On the optimum gain parameter in LMS adaptation
IEEE Transactions on Acoustics, Speech, and Signal Processing, 1987In this correspondence, the optimum selection of the adaptation parameter μ in LMS adaptive estimation is discussed for a white data covarianee matrix. It is shown via analysis and numerical evaluation, that the optimum selection of μ is a complicated function of the number of filter taps, the initial weight setting, the Wiener weights, and the number ...
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Adaptive-Gain Observers and Applications
2007We distinguish two kinds of observers for nonlinear systems which are used by scientists and engineers: empirical observers and converging observers.
Boizot, Nicolas, Busvelle, Eric
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