fftfreq - get exact Matlab FFT frequencies

Versione 1.0.2 (1,91 KB) da Kristupas Tikuišis
Calculate FFT frequencies of the amplitudes calculated with the FFT
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Aggiornato 13 apr 2023

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Calculates the exact Fourier frequencies for spectra calculated via FFT. This functionality is not provided by Matlab, hence requires custom function. Currently only works on vectors/1D arrays.
It is not straightforward due to how the operation is done on a bit-level. The first coefficient is 0 Hz (the DC component) but higher negative and positive frequencies are ordered in a specific way, separated at the Nyquist frequency (also optionally returned by the function).

Cita come

Kristupas Tikuišis (2024). fftfreq - get exact Matlab FFT frequencies (https://www.mathworks.com/matlabcentral/fileexchange/113240-fftfreq-get-exact-matlab-fft-frequencies), MATLAB Central File Exchange. Recuperato .

Compatibilità della release di MATLAB
Creato con R2020a
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Versione Pubblicato Note della release
1.0.2

Only the description updated
1.0.1

Updated description
1.0.0