Discrete sampling on continuous-time model

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Jan Jaap
Jan Jaap 2012-11-30
Hello,
For an assignment I have a model in simulink. The model is a statefeedback model in continuous time. Because the system itself uses a computer to control the system I need to control part to be discrete, while the model is continuous.
For the input I achieved it by using the zero-order hold. However I also need to sample the state before it is multiplied by the feedback matrix K. How can I sample the state(where Scope2 measures)? I tried to also use a zero-order-hold, but this gave errors, due to the dimensions. Using a mux and demux does not solve this problem. Regards, Jan Jaap
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Azzi Abdelmalek
Azzi Abdelmalek 2012-11-30
If your are working with continuous system, why are you using sample time, The numeric problem is handled by your solver

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回答（1 个）

Azzi Abdelmalek
Azzi Abdelmalek 2012-11-30
编辑：Azzi Abdelmalek 2012-11-30
Have you tried to set the sample time of your Gain2 block?

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