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Observability criteria of linear discrete-continuous system. (English) Zbl 1172.93010
Summary: The linear discrete-continuous system studied here contains two coupled subsystems: one with continuous-time dynamics. Continuous-time dynamics are described by ordinary linear differential equations, whereas discrete-time dynamics are described by difference equations for the system state jumps, at prescribed time instants. Systems of three following degrees of generality are considered: time-varying, time-periodical and time-constant discrete-continuous systems. For these systems observability criteria are proposed. Some significant observability properties of such systems are presented.

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