Sampling-Period Influence in Performance and Stability in Sampled-Data Control Systems

As already verified experimentally in foregoing works [1, 2] the dimensioning of the sampling period in sampleddata systems (analog plant and digital controller) aiming principally the stability is a very important task due the increasing of the lawsuit of this kind of systems. However, the theory to study this nature of systems is not complete today. In this work we search for to give the initial steps for design of discrete controllers for sampled-data systems considering an expression for the aliasing.

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