control.matlab.unwrap
- control.matlab.unwrap(angle, period=6.283185307179586)[source]
Unwrap a phase angle to give a continuous curve.
- Parameters
angle (array_like) – Array of angles to be unwrapped
period (float, optional) – Period (defaults to 2*pi)
- Returns
angle_out – Output array, with jumps of period/2 eliminated
- Return type
array_like
Examples
>>> # Already continuous >>> theta1 = np.array([1.0, 1.5, 2.0, 2.5, 3.0]) * np.pi >>> theta2 = ct.unwrap(theta1) >>> theta2/np.pi array([1. , 1.5, 2. , 2.5, 3. ])
>>> # Wrapped, discontinuous >>> theta1 = np.array([1.0, 1.5, 0.0, 0.5, 1.0]) * np.pi >>> theta2 = ct.unwrap(theta1) >>> theta2/np.pi array([1. , 1.5, 2. , 2.5, 3. ])