Title :
On the encirclement condition and its generalization
fDate :
10/1/1975 12:00:00 AM
Abstract :
A new sufficiency proof for the Nyquist criterion is obtained via the analyticity properties of the log function. The intuition derived therefrom is then used to formulate a generalized stability criterion applicable to feedback systems whose open loop gains are characterized by arbitrary Lipschitz continuous unbiased operators.
Keywords :
Feedback systems; General circuits and systems theory; Stability; Algebra; Feedback loop; H infinity control; Image analysis; MIMO; Mathematics; Nonlinear systems; Stability analysis; Stability criteria; Sufficient conditions;
Journal_Title :
Circuits and Systems, IEEE Transactions on
DOI :
10.1109/TCS.1975.1083979
