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

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

Answer 1

[Arkadiy Turevskiy]

In this case the best bet is System Identification Toolbox. Take a look at videos and examples to get started.