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How to plot bode?

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Shaukhin
Shaukhin 2022-9-25
评论： Star Strider 2022-9-27
What is the wrong here I wrote?

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Star Strider
Star Strider 2022-9-25
编辑：Star Strider 2022-9-25
Ran in:
We need to know more.
If you have the Control System Toolbox (or the System Identification Toolbox, or both) licensed and installed, both of those should work.
Example —
h = tf([50 0],[1 24 180 400])
h = 50 s -------------------------- s^3 + 24 s^2 + 180 s + 400 Continuous-time transfer function.
figure
bode(h)
H = tf([1 0.1 7.5],[1 0.12 9 0 0])
H = s^2 + 0.1 s + 7.5 ---------------------- s^4 + 0.12 s^3 + 9 s^2 Continuous-time transfer function.
figure
bode(H)
More details would be appropriate.
Use the ver function to see if you have either or both of those functions.
There are also versions in the Model Predictive Control Toolbox, DSP System Toolbox and the RF Toolbox. (I have none of those, however they would not be compatible with your posted code, from their descirptions in the online documentation. They require different arguments.)
EDIT — Corrected typographical errors.
.
  2 个评论
Shaukhin
Shaukhin 2022-9-27
I have the system identification toolbox, but the problem was not solved!!!
Then I installed control system toolbox, the problem is solved, thanks a lot........
Star Strider
Star Strider 2022-9-27
My pleasure!
If my Answer helped you solve your problem, please Accept it!
I thought those functions were common to both Toolboxes. They have the same syntax and the same documentation.
.

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