How to export the FFT analysis data from the FFT Analyzer app in the "powergui" block to the base workspace?

Is it possible to export the FFT analysis data from the graphical interface of the FFT Analyzer app in the "powergui" block to the base workspace?

Answer 1

[MathWorks Support Team]

In MATLAB R2023b, it is not possible to directly export the FFT analysis from the graphical interface opened from the "powergui" block. The workaround is to use command-line tools to obtain the desired data in the base workspace by following the steps below.

1. Get initial default structure:

FFTDATA = power_fftscope(ScopeData);

2. Modify the "FFTDATA" structure to have desired options and settings, for example:

FFTDATA.cycles = 10; 
FFTDATA.fundamental = 50; 
FFTDATA.maxFrequency = 500; 

3. Update the data structure: 

FFTDATA = power_fftscope(FFTDATA)

The attached files demonstrate this workflow with a known dataset.