How can I plot the magnitude and phase Bode diagrams (of an SISO model) asis shown in bode function?

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Bogdan -Ervin
Bogdan -Ervin 2023-4-29
回答： Ranjeet 2023-5-2
All the answers I saw has not answered the question, and I spent an entire day just to show those diagrams.
I have troubles especially in transforming the x axis as is used in bode and bodemag plots.
In my implementation I just get frequencies going from 1 to one.

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回答（1 个）

Ranjeet
Ranjeet 2023-5-2
Ran in:
Hi Bogdan,
I would suggest you the following link to get started with bode plots of a SISO system.
Bode plot example: SISO system
Also, I would suggest you see the following example to plot for specified frequency range –
Bode plot at specified frequencies
For example, you can change the following code snippet
H = tf([-0.1,-2.4,-181,-1950],[1,3.3,990,2600]);
bode(H,{1,100})
grid on
to
H = tf([-0.1,-2.4,-181,-1950],[1,3.3,990,2600]);
bode(H,{1,1000})
grid on
to change the frequency range between 1 and 1000 Hz. Here, final frequency has been changed from 100 to 1000.

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