scipy.signal.dstep(system, x0=None, t=None, n=None)[source]

Step response of discrete-time system.


system : tuple of array_like

A tuple describing the system. The following gives the number of elements in the tuple and the interpretation:

  • 1: (instance of dlti)
  • 3: (num, den, dt)
  • 4: (zeros, poles, gain, dt)
  • 5: (A, B, C, D, dt)

x0 : array_like, optional

Initial state-vector. Defaults to zero.

t : array_like, optional

Time points. Computed if not given.

n : int, optional

The number of time points to compute (if t is not given).


tout : ndarray

Output time points, as a 1-D array.

yout : ndarray

Step response of system. Each element of the tuple represents the output of the system based on a step response to each input.

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