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    Stabilization and Performance over a Gaussian Communication Channel for a Plant with Time Delay


    Freudenberg, J.S. and Middleton, R.H. (2009) Stabilization and Performance over a Gaussian Communication Channel for a Plant with Time Delay. In: 2009 American Control Conference, June 10-12, 2009, St. Louis, Missouri, USA.

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    Abstract

    Two problems that have received much attention are those of finding the minimum channel signal to noise ratio compatible with closed loop stability, and of finding the optimal performance, in terms of disturbance attenuation, for a channel with specified signal to noise ratio. In this paper, we study these problems for the case in which the plant has relative degree greater than one, and thus introduces a delay greater than one time step. We show that, unlike the relative degree one case, for the problem of stabilization linear time varying control and communication strategies may have advantages over linear time invariant strategies. We derive a lower bound on optimal disturbance response at a fixed terminal time. If the encoder has access to the state of the plant, then this bound is achievable using linear time varying communication and control.

    Item Type: Conference or Workshop Item (Paper)
    Keywords: Information theory and control; Networked control systems; Gaussian Communication Channel; ACC 2009; Hamilton Institute.
    Academic Unit: Faculty of Science and Engineering > Research Institutes > Hamilton Institute
    Item ID: 1643
    Depositing User: Hamilton Editor
    Date Deposited: 04 Nov 2009 17:25
    Refereed: Yes
    URI:

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