How can i plot the magnitude and phase response for given output?
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Star Strider
2018-3-4
First, code the function you posted an image of. It would be best to create it as a transfer function object, using the tf function. See the relevant documentation for details.
Note that for a SISO system, you will have to use squeeze to plot the result, if you want to plot the outputs of bode and the others.
Example —
[mag,phase,wout] = bode(tfobj);
figure(3)
subplot(2,1,1)
semilogx(wout, 20*log10(squeeze(mag)), '-b', 'LineWidth',1) % Bode Plot: Magnitude
ylabel('H(f) (dB)')
grid
subplot(2,1,2)
semilogx(wout, squeeze(phase), '-b', 'LineWidth',1) % Bode Plot: Phase
xlabel('Frequency (rad/sec)')
ylabel('Phase (°)')
grid
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