| 5 | | If you add {{{Ts}}}, Matlab interprets this a the sampling time of a discrete-time system, and thus returns a discrete-time object. Which is totally wrong, because of course the meaning of the A,B,C,D matrix is completely different in that case. I was trying to figure out why I was getting unstable responses when computing {{{step(sys)}}}, since the eigenvalues were all in the left-hand plane, but then I plotted the Bode plots, and they were limited to Nyquist's frequency, so I understood: the eigenvalues were outside the unit disk... |
| | 5 | If you add {{{Ts}}}, Matlab interprets this a the sampling time of a discrete-time system, and thus returns a discrete-time object. Which is totally wrong, because of course the meaning of the A,B,C,D matrices is completely different in that case. I was trying to figure out why I was getting unstable responses when computing {{{step(sys)}}}, since the eigenvalues were all in the left-hand plane, but then I plotted the Bode plots, and they were limited to Nyquist's frequency, so I understood: the eigenvalues were outside the unit disk... |
