scipy.signal.dstep¶

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

Step response of discrete-time system.

Parameters:

Parameters:	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).
Returns:	tout : ndarray Output time points, as a 1-D array. yout : tuple of ndarray Step response of system. Each element of the tuple represents the output of the system based on a step response to each input.

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).

Returns:

tout : ndarray: Output time points, as a 1-D array.
yout : tuple of ndarray: Step response of system. Each element of the tuple represents the output of the system based on a step response to each input.