Cannot select signal when using Powergui FFT Analysis Tool -Empty-

MathWorks Support Team

2020 8 31

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I am trying to use the FFT Analysis tool on the "powergui" block but I am not able to select the signal that I want to analyze on the drop-down menu. The name and input field only display "-Empty-".

Am I missing some steps?

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MathWorks Support Team 2021-3-12

11 个投票

Below are some steps you would need to do:

Go to model Configuration Parameter and select Data Import/Export pane on the left
Untick the Single simulation output and click on Apply
Double click the "Scope" block at which the signals are connected, right click and select Configuration Properties, go to Logging and select Log data to the workspace and select Structure with Time and click on Apply
Run the simulation
Double click "powergui" block and select FFT Analysis from the Tools tab
Now you should be able to select the signals from the list