numpy.fft.ihfft

numpy.fft.ihfft(a, n=None, axis=-1)

Compute the inverse fft of a signal whose spectrum has Hermitian symmetry.

Parameters:

a : array_like

Input array.

n : int, optional

Length of the ihfft.

axis : int, optional

Axis over which to compute the ihfft.

See also

rfft, hfft

Notes

These are a pair analogous to rfft/irfft, but for the opposite case: here the signal is real in the frequency domain and has Hermite symmetry in the time domain. So here it’s hermite_fft for which you must supply the length of the result if it is to be odd.

ihfft(hfft(a), len(a)) == a within numerical accuracy.