numpy.unwrap(p, discont=3.141592653589793, axis=-1)
[source]
Unwrap by changing deltas between values to 2*pi complement.
Unwrap radian phase p
by changing absolute jumps greater than discont
to their 2*pi complement along the given axis.
Parameters: |
p : array_like Input array. discont : float, optional Maximum discontinuity between values, default is axis : int, optional Axis along which unwrap will operate, default is the last axis. |
---|---|
Returns: |
out : ndarray Output array. |
If the discontinuity in p
is smaller than pi
, but larger than discont
, no unwrapping is done because taking the 2*pi complement would only make the discontinuity larger.
>>> phase = np.linspace(0, np.pi, num=5) >>> phase[3:] += np.pi >>> phase array([ 0. , 0.78539816, 1.57079633, 5.49778714, 6.28318531]) >>> np.unwrap(phase) array([ 0. , 0.78539816, 1.57079633, -0.78539816, 0. ])
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https://docs.scipy.org/doc/numpy-1.13.0/reference/generated/numpy.unwrap.html