emd.spectra.phase_from_freq

emd.spectra.phase_from_freq(ifrequency, sample_rate, phase_start=-3.141592653589793)

Compute the instantaneous phase of a signal from its instantaneous frequency.

Parameters:

ifrequencyndarray

Input array containing the instantaneous frequencies of a signal

sample_ratefloat

The sampling frequency of the data

phase_startfloat

Start value of the phase output (Default value = -np.pi)

Returns:

IPndarray

The instantaneous phase of the signal