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Penetrating transmission zeros in the design of robust servomechanism systemsIn the design of a robust servomechanism system, it is well known that the system cannot track a reference signal whose frequency coincides with the transmission zeros of the system. This paper proposes a new design method for overcoming this difficulty. The controller to be used employs a sampler and holding device with exponential decay. It is shown that the transmission zeros of the discretized system can be shifted by changing the rate of the exponential decay of the holding device. Thus, it is possible to design a robust controller for the discretized system to track any reference signal of given frequency, even if the given frequency coincides with the transmission zeros of the original continuous-time system.
Document ID
19810053428
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Wang, S. H.
(Maryland, University College Park, MD, United States)
Davison, E. J.
(Toronto, University Toronto, Canada)
Date Acquired
August 11, 2013
Publication Date
June 1, 1981
Publication Information
Publication: IEEE Transactions on Automatic Control
Volume: AC-26
Subject Category
Cybernetics
Accession Number
81A37832
Funding Number(s)
CONTRACT_GRANT: NAG1-27
CONTRACT_GRANT: DE-AC01-80RA-50420
CONTRACT_GRANT: NRC A-4396
Distribution Limits
Public
Copyright
Other

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