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How to build Body Plots in Simulink from time-domain data (non-linear system)

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Giuseppe Naselli
Giuseppe Naselli 2013-11-11
回答： Arkadiy Turevskiy 2013-11-22
Hi,
I have a series of time-domain signals, let, says X (input signal) and A,B,C,D,E (output signals)
These measurements come from a non-linear system excited from 0 to 40 Hz. The frequency of X varies (not linearly). Every signal mentioned above is affected by noise
I wish to perform bode plots of A, B, C, D, E respect to X
What is the simplest approach in Simulink to perform such a task?
Thanks in advance for your help
G

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Arkadiy Turevskiy
Arkadiy Turevskiy 2013-11-22
In this case the best bet is System Identification Toolbox. Take a look at videos and examples to get started.

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