Hi,
I understand that you want to compute and visualize the FFT analysis, including THD, using “power_fftscope”. To achieve the same, follow the following steps:
- First ensure that your data is supplied in a structure with fields like “time”, “signals.values”, and “signals.dimensions”. For example:
ScopeData.time = (0:0.001:1)';
ScopeData.signals.values = sin(2*pi*50*ScopeData.time);
ScopeData.signals.dimensions = 1;
- Pass this data in “power_fftscope” function which will compute and return calculated FFT data. This data can be plotted by passing it in “power_fftscope” function.
FFTDATA = power_fftscope(ScopeData);
power_fftscope(FFTDATA);
- The calculated FFT data also containst the THD Value, which you can access using “.THD”.
To know more about “power_fftscope” function, refer to the following MathWorks documentation:
