feedback regulator

feedback regulator

[′fēd‚bak ‚reg·yə‚lād·ər]
(control systems)
A feedback control system that tends to maintain a prescribed relationship between certain system signals and other predetermined quantities.
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Suppose the generalized matrix-valued Riccati equation (23) has solution ([K.sub.t], [M.sub.t], [Y.sup.i.sub.t]) for all t [member of] [0, T]; then the optimal linear feedback regulator for LQ stochastic optimal control problem (6) is
For LQ stochastic optimal control problem (32)-(33), if, for all t [member of] [0, T], there exist matrices ([K.sub.t], [M.sub.t], [Y.sup.i.sub.t]) satisfying (36), then the optimal linear feedback regulator is
From the discussion of the previous section, we can see that the key to get the optimal linear feedback regulator for LQ stochastic optimal control problem is the solvability of the generalized Riccati equation (23).
where [u.sub.t] is formed by the feedback regulator
A mathematical background of the theory of the stochastic sensitivity synthesis by feedback regulators was briefly presented.
This guide introduces geometric control design methodologies for asymptotic tracking and disturbance rejection of infinite-dimensional systems governed by partial differential equations, focusing on the state feedback regulator problem, in which the controller is provided with full information on the state of the control system and exosystem.
David Baltimore has used the LPS-TLR4 signalling pathway as the model to show the involvement of miR 146, 132 and 155 in immune response and demonstrates the role of miR146 as a feedback regulator of inflammatory activation and regulator of haematopoietic cell differentiation.
In land vertebrates, the induction of ALS by SA has been suggested to result from a decrease in hepatic free heme, a feedback regulator of ALS.