Results 21 to 30 of about 2,838,836 (274)

Bayesian feedback versus Markovian feedback in a two-level atom [PDF]

open access: yes, 2002
We compare two different approaches to the control of the dynamics of a continuously monitored open quantum system. The first is Markovian feedback as introduced in quantum optics by Wiseman and Milburn [Phys. Rev. Lett. {\bf 70}, 548 (1993)]. The second
Mancini, Stefano   +2 more
core   +2 more sources

Why “state” feedback?

open access: yesIFAC Proceedings Volumes, 2008
Abstract We study the linear quadratic control problem from a representation-free point of view, and we show that this formulation brings forth two self-contained and original proofs of the optimality of state feedback control laws; these proofs which do not depend on an a priori state-space representation. Moreover, we show an orthogonality property
Rapisarda, Paolo, Markovsky, Ivan
openaire   +2 more sources

Feedback-controlled steady-state plasma [PDF]

open access: yesPlasma Physics, 1971
A current-free magnetized plasma with independently variable density and electron temperature has been produced and studied. The plasma, which may be either steady state or pulsed, is generated at one end of a 1.5-m-long vacuum system by a 10 GHz microwave discharge at electron gyroresonance in a d.c. magnetic field.
Brown, Ian G.   +5 more
openaire   +2 more sources

Almost Periodic Synchronization of Fuzzy Cellular Neural Networks with Time–Varying Delays via State–Feedback and Impulsive Control

open access: yesInternational Journal of Applied Mathematics and Computer Science, 2019
In this paper, we are concerned with drive-response synchronization for a class of fuzzy cellular neural networks with time varying delays. Based on the exponential dichotomy of linear differential equations, the Banach fixed point theorem and the ...
Li Yongkun, Wang Huimei, Meng Xiaofang
doaj   +1 more source

Global output tracking by state feedback for high-order nonlinear systems with time-varying delays

open access: yesCogent Engineering, 2020
This paper focuses on the problem of global practical output tracking for a class of high-order non-linear systems with time-varying delays (via state feedback).
Keylan Alimhan   +3 more
doaj   +1 more source

Finite–Time Output Stability of Impulse Switching System With Norm–Bounded State Constraint

open access: yesIEEE Access, 2019
This paper discusses the finite-time output stability (FTOS) for the impulse switching linear system (SLS) when the norm-bounded state constraint is simultaneously considered during a scheduled finite-time period.
Shuai Zhang   +4 more
doaj   +1 more source

Event-Driven Optimal Feedback Control for Multi-Antenna Beamforming

open access: yes, 2009
Transmit beamforming is a simple multi-antenna technique for increasing throughput and the transmission range of a wireless communication system. The required feedback of channel state information (CSI) can potentially result in excessive overhead ...
Huang, Kaibin   +2 more
core   +2 more sources

A state dependent sampling for linear state feedback [PDF]

open access: yesAutomatica, 2012
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Fiter, Christophe   +3 more
openaire   +2 more sources

Capacity of a POST Channel with and without Feedback

open access: yes, 2013
We consider finite state channels where the state of the channel is its previous output. We refer to these as POST (Previous Output is the STate) channels. We first focus on POST($\alpha$) channels.
Asnani, Himanshu   +2 more
core   +1 more source

Parametrization of the feedback Hamiltonian realizing a pure steady state [PDF]

open access: yes, 2005
Feedback control is expected to considerably protect quantum states against decoherence caused by interaction between the system and environment. Especially, Markovian feedback scheme developed by Wiseman can modify the properties of decoherence and ...
M. A. Nielsen, Naoki Yamamoto
core   +2 more sources

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