Signal-to-noise ratio performance limitations for input disturbance rejection in output feedback control

Title: Signal-to-noise ratio performance limitations for input disturbance rejection in output feedback control
Creator: Rojas, Alejandro J.
Relation: Systems & Control Letters Vol. 58, Issue 5, p. 353-358
Publisher Link: http://dx.doi.org/10.1016/j.sysconle.2009.01.001
Publisher: Elsevier
Resource Type: journal article
Date: 2009
Description: Communication channels impose a number of obstacles to feedback control. One recent line of research considers the problem of feedback stabilization subject to a constraint on the channel signal-to-noise ratio (SNR). We use the spectral factorization induced by the optimal solution and quantify in closed-form the infimal SNR required for both stabilization and input disturbance rejection for a minimum phase plant with relative degree one and memoryless additive white Gaussian noise (AWGN) channel. Finally we conclude by presenting a closed-form expression of the difference between the infimal AWGN channel capacity for input disturbance rejection and the infimal AWGN channel capacity required only for stabilizability.
Subject: signal to noise ratio; control over communication networks; performance limitations; input disturbance rejection; stability of linear systems
Identifier: uon:7409
Identifier: http://hdl.handle.net/1959.13/807427
Identifier: ISSN:0167-6911
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