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FFT_list.m

version 1.0.0.0 (3.61 KB) by Rashmil Dahanayake
Performs a FFT analysis for a signal and lists the magnitudes and phase values.

7 Downloads

Updated 02 Jun 2014

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The original fftscope in simpower systems limits the usage to analyse the signals apart from simulink scopedata format.
This functions enables converts the signal structures into a power_fftscope format and performs fft analysis.
The function essentially a wrap around of power_fftscope which calculates the magnitude ,phase details of harmonic components of a given signal. Could be handy to analyse the electrical waveforms. (eg voltage, current)
Input method:
fft_list(data,time)
Where data & time are raw matrix in same length.
eg: fft_list(x,t,'f',50)
use help command for more information.
help fft_list

Note: Simpowersystems toolbox is necessary to run this function. Hence the first run might take few seconds to load up, but consequent runs are normal.

Cite As

Rashmil Dahanayake (2020). FFT_list.m (https://www.mathworks.com/matlabcentral/fileexchange/46803-fft_list-m), MATLAB Central File Exchange. Retrieved .

Comments and Ratings (1)

I got following error.
Error using load_system (line 21)
Invalid Simulink object specifier

Error in C:\Program
Files\MATLAB\R2012a\toolbox\physmod\powersys\powersys\private\InitializePowerguiTools.p>InitializePowerguiTools (line 33)

Error in C:\Program Files\MATLAB\R2012a\toolbox\physmod\powersys\powersys\private\power_fftscope_pr.p>power_fftscope_pr (line
28)

Error in power_fftscope (line 20)
[varargout{1:nargout}] = power_fftscope_pr(varargin{:});

Error in fft_list>fft_prep (line 115)
fft_data = power_fftscope(temp);

Error in fft_list (line 32)
temp = fft_prep (signal,time); % ie this contains fft_data from funtion #2

Can you help me to resolve this.
Thanks

MATLAB Release Compatibility
Created with R2012b
Compatible with any release
Platform Compatibility
Windows macOS Linux