Is there a way to use FRD(Frequency Response Data) in Simulink model instead of an LTI SS block?
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MathWorks Support Team
on 26 Feb 2021
Answered: MathWorks Support Team
on 26 Feb 2021
While trying to simulate a control system , with FRD collected from actual hardware, is there a way to use this FRD data in their Simulink model instead of an LTI SS block?
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MathWorks Support Team
on 26 Feb 2021
You will need to fit an LTI model to the frequency response data. Attached are few links that may help the workflow.
Frequency Domain Identification: Estimating Models Using Frequency Domain Data
Simulate identified linear model in Simulink using 'Idmodel' :
Here is an example to Simulate Identified Linear Model in Simulink with Initial Conditions:
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