Module helper

Module helper 

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Helper functions for the FFT module

This module provides helper functions for working with frequency domain data, following SciPy’s conventions and API.

Functions§

fftfreq
Return the Discrete Fourier Transform sample frequencies.
fftshift
Shift the zero-frequency component to the center of the spectrum.
freq_bins
Compute the frequency bins for a given FFT size and sample rate.
ifftshift
Inverse of fftshift.
next_fast_len
Find the next fast size of input data to fft, for zero-padding, etc.
prev_fast_len
Find the previous fast size of input data to fft.
rfftfreq
Return the Discrete Fourier Transform sample frequencies for real FFT.