wradlib.dp.unfold_phi_vulpiani#
- wradlib.dp.unfold_phi_vulpiani(phidp, kdp, *, th=-20, winlen=7)[source]#
- wradlib.dp.unfold_phi_vulpiani(obj: Dataset, **kwargs)
Alternative phase unfolding which completely relies on \(K_{DP}\).
This unfolding should be used in oder to iteratively reconstruct \(Phi_{DP}\) and \(K_{DP}\) (see [Vulpiani et al., 2012]).
Note
\(Phi_{DP}\) is assumed to be in the interval [-180, 180] degree. From experience the window for calculation of \(K_{DP}\) should not be too large to catch possible phase wraps.
- Parameters:
phidp (
numpy.ndarray
) – array of floatskdp (
numpy.ndarray
) – array of floatsth (
float
, optional) – Threshold th3 in the above citation, defaults to -20.winlen (
int
, optional) – Length of window to fix possible phase over-correction. Normally should take the value of the length of the processing window in the above citation, defaults to 7.
- Returns:
phidp (
numpy.ndarray
) – array of floats