[Octave-bug-tracker] [bug #62292] [octave forge] (control) Generic close loop formula doesn't show same result than feedback function

[Torsten Lilge]

Follow-up Comment #1, bug #62292 (project octave):

The both transfer functions of the closed loop are describing the same system.
It's just, that in the longer form, the common roots and zeros are not
canceled.

You can check that the transfer functions are equivalent by


GD1 = G1/(1+G1*G2);
GD2 = 1/(1/G1+G2);
% Bode plot
bode (GD1, GD2)
% tf -> ss -> tf
tf (ss (GD1))
tf (ss (GD2))


Btw: Matlab is giving the same result.



    _______________________________________________________

Reply to this item at:

  <https://savannah.gnu.org/bugs/?62292>

_______________________________________________
  Message sent via Savannah
  https://savannah.gnu.org/