NASA NTRS · 19730037429
On the control of linear systems using two level periodic output feedback.
Abstract
A class of second order linear time-invariant systems which are unstable for any constant feedback but which are stabilized by a two level periodic feedback is identified. Necessary and sufficient conditions for this type of stabilization are found. In addition, the sensitivity of the closed-loop system to changes in feedback gains is investigated.
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Welch, R. V., Levine, W. S.. 1972-01-01. On the control of linear systems using two level periodic output feedback.. https://ntrs.nasa.gov/citations/19730037429
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