cora.util.fftutil

Functions

irfftn(arr)
rfftfreqn(n[, d])	Generate an array of FFT frequencies for an n-dimensional real transform.
rfftn(arr)

cora.util.fftutil.rfftfreqn(n, d=None)

Generate an array of FFT frequencies for an n-dimensional real transform.

Parameters:

• n (tuple) – A tuple containing the dimensions of the window in each dimension.

• d (float or tuple, optional) – The sample spacing along each dimension

Returns:

frequencies – An array of shape (n[0], n[1], …, n[-1]/2+1, len(n)), containing the frequency vector of each sample.

Return type:

ndarray