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Stability analysis of digital feedback control systems with time-varying sampling periods. (English) Zbl 0941.93034
The authors study qualitative properties of a class of digital control systems with time-varying sampling periods consisting of a continuous-time nonlinear plant described by systems of first order differential equations, a nonlinear digital controller described by systems of first order difference equations, and appropriate interface elements between the plant and controller (A/D and D/A converters). Using a linearization approach, they establish several sets of conditions for Lyapunov stability and instability of the trivial solution and apply these results to the analysis of certain classes of switched systems and they study a stabilization problem for nonlinear cascaded control systems via hybrid feedback controllers.

MSC:
 93C57 Sampled-data control/observation systems 93B18 Linearizations 93D05 Lyapunov and other classical stabilities (Lagrange, Poisson, $$L^p, l^p$$, etc.) in control theory 93D15 Stabilization of systems by feedback
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References:
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