cupyx.scipy.signal.dbode#

cupyx.scipy.signal.dbode(system, w=None, n=100)[source]#

Calculate Bode magnitude and phase data of a discrete-time system.

Parameters:

  • system (an instance of the LTI class or a tuple describing the system.) –

    The following gives the number of elements in the tuple and the interpretation:

    • 1 (instance of dlti)

    • 2 (num, den, dt)

    • 3 (zeros, poles, gain, dt)

    • 4 (A, B, C, D, dt)

  • w (array_like, optional) – Array of frequencies (in radians/sample). Magnitude and phase data is calculated for every value in this array. If not given a reasonable set will be calculated.

  • n (int, optional) – Number of frequency points to compute if w is not given. The n frequencies are logarithmically spaced in an interval chosen to include the influence of the poles and zeros of the system.

Returns:

  • w (1D ndarray) – Frequency array [rad/time_unit]

  • mag (1D ndarray) – Magnitude array [dB]

  • phase (1D ndarray) – Phase array [deg]

See also

scipy.signal.dbode

Notes

If (num, den) is passed in for system, coefficients for both the numerator and denominator should be specified in descending exponent order (e.g. z^2 + 3z + 5 would be represented as [1, 3, 5]).