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Reformulated Nyquist criterion for discrete-time systems

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1 Author(s)
D. A. Pierre ; Dept. of Electr. Eng., Montana State Univ., Bozeman, MT, USA

A reformulated Nyquist criterion for discrete time systems is generalized in two ways. First, the criterion is cast in a form which allows the user to assess, directly from the mapping, the range of a parameter that yields stability. Second, the criterion is extended to apply to the case where poles at z=∞ occur in the function being mapped

Published in:

IEEE Transactions on Education  (Volume:32 ,  Issue: 1 )