emd.spectra.phase_from_freq¶
- emd.spectra.phase_from_freq(ifrequency, sample_rate, phase_start=- 3.141592653589793)[source]¶
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