utils.interpolate_wf_fd#

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Summary#

get log-log interpolant of amp & lin of phase with old_f[0] >= 0,

Signature#

def interpolate_wf_fd(old_f, old_wf, log_in = False)

Input variables#
Name	Type	Default	Description
`old_f`			(ordered) array of rfft frequencies >= 0 (in Hz) where waveform is saved
`old_wf`			len(old_f) array with frequency domain waveform h(f) OR log waveform log(h) = np.log(np.abs(h)) + 1j\*np.unwrap(np.angle(h)) => set log_in=True –> BE SURE TO UNWRAP PHASE if log_in !!!
`log_in`		False	bool indicating if old_wf is log(h) => real, imag = amp, unwrapped_phase

Output variables#

Return annotation	Docstring type	Description
`None`		Function that takes frequencies (Hz) & returns waveform at those frequencies

Docstring#

get log-log interpolant of amp & lin of phase with old_f[0] >= 0,
:param old_f: (ordered) array of rfft frequencies >= 0 (in Hz) where waveform is saved
:param old_wf: len(old_f) array with frequency domain waveform h(f)
    OR log waveform log(h) = np.log(np.abs(h)) + 1j*np.unwrap(np.angle(h)) => set log_in=True
    --> BE SURE TO UNWRAP PHASE if log_in !!!
:param log_in: bool indicating if old_wf is log(h) => real, imag = amp, unwrapped_phase
:return: Function that takes frequencies (Hz) & returns waveform at those frequencies