control.matlab.nyquist

control.matlab.nyquist(syslist[, omega])

Nyquist plot of the frequency response

Plots a Nyquist plot for the system over a (optional) frequency range.

Parameters
  • sys1 (list of LTI) – List of linear input/output systems (single system is OK).

  • .. (list of LTI) – List of linear input/output systems (single system is OK).

  • sysn (list of LTI) – List of linear input/output systems (single system is OK).

  • omega (array_like) – Set of frequencies to be evaluated, in rad/sec.

Returns

  • real (ndarray (or list of ndarray if len(syslist) > 1))) – real part of the frequency response array

  • imag (ndarray (or list of ndarray if len(syslist) > 1))) – imaginary part of the frequency response array

  • omega (ndarray (or list of ndarray if len(syslist) > 1))) – frequencies in rad/s