How to plot magnitude (not in db) of the transfer function for the frequencies?
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Normally we use bode plot for the magnitude of transfer function tf. But, how to get absolute magnitude in matlab.
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Joel
le 29 Mar 2023
Modifié(e) : Joel
le 29 Mar 2023
Hi,
You can use 'bode' function itself to get the absolute magnitude in MATLAB.
[mag,phase,wout] = bode(sys); % where 'sys' is the transfer function specified using 'tf'
‘mag’ is the absolute magnitude (not in dB) and ‘wout’ is a set of frequencies. You can now plot ‘mag’ against ‘wout’ by either using the 'plot' function if you want a linear X axis or the 'semilogx' function if you want a logarithmic X axis.
Refer to the following documentation for more information:
Hope this helps!
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