Paper: Zeros of sampled systems

Authors:
K. J. Åström;P. Hagander;J. Sternby
Affiliations:
Department of Automatic Control, Lund Institute of Technology, Box 725, S-220 07 Lund 7, Sweden;Department of Automatic Control, Lund Institute of Technology, Box 725, S-220 07 Lund 7, Sweden;Department of Automatic Control, Lund Institute of Technology, Box 725, S-220 07 Lund 7, Sweden
Venue:
Automatica (Journal of IFAC)
Year:
1984

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Abstract

The zeros of the discrete-time system obtained when sampling a continuous time system are explored. Theorems for the limiting zeros for large and small sampling periods are given. Conditions which guarantee that the sampled system has stable zeros are also presented.