Sampled data systems

A sampled-data system is a control system where a continuous-­time plant (control theory) is controlled with a digital device. Under periodic sampling, the sampled­-data system is time-­varying but also periodic, and thus it may be modeled by a simplified discrete-­time system obtained by discretizing the plant. However, this discrete model does not capture the intersample behavior of the real system, which may be critical in a number of applications.

The analysis of sampled­-data systems incorporating full time information leads to new challenging control problems with a rich mathematical structure. Many of these problems have been solved only very recently.


  • Chen, Tongwen; Bruce Francis (1995). Optimal sampled -data control systems. London: Springer-Verlag. ISBN 3-540-19949-7.

control systems are largly used in modern days. One of the good example is auto mobile companies.

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