Normalize values in a plot

23 views (last 30 days)
Miguel Albuquerque
Miguel Albuquerque on 11 Jul 2022
Hey guys, thanks in advance,
I have this graph:
And I wish to normalize y axis , saying that maximum is 0dB. Im normalizing it like this:
maxval=max(X_QPSK_cut);
X_QPSK_cut=X_QPSK_cut/maxval;
fig=figure;
hold on
set(fig,'color','white');
plot(freq_XQPSK_cut,20*log10(X_QPSK_cut),'b','linewidth',2);
xlabel('Frequency [Hz]');
ylabel('QPSK Spectrum [dB]');
set(gca,'fontsize',fontsize);
grid on;
hold off
Is there a way of normalize the y axis , saying that max val is 0, because, if I put 0 it will say that vector is infinit, and that is true,
Thanks,
  4 Comments
Miguel Albuquerque
Miguel Albuquerque on 12 Jul 2022
Thanks dpb, I ve already solved it, I normalized with the max value of the plot, the plot in the figure, increased 110 dB.

Sign in to comment.

Answers (0)

Categories

Find more on Graphics Performance in Help Center and File Exchange

Products


Release

R2021b

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!