Plotting the same signal with a different scanning

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One time i measure a signal for 30 seconds with 50 Hertz and the second time i measure the same signal 30 seconds now with 600 Hertz. So i get 2 arrays (x*2 double) with a different size. Now i want to plot this 2 signals in one diagram. Is this possible?

Accepted Answer

EmirBeg on 27 May 2021
Edited: EmirBeg on 27 May 2021
You can interpolate one of the signals to make them the same size. Something like this:
Signal1 = (linspace(1,30,30))';
Signal2 = (linspace(1,30,180))'; %don't mind this, just creating your signals with different frequencys
Signal1_int = interp1(1:size(Signal1,1),Signal1.',linspace(1,size(Signal1,1),size(Signal2,1)))';
%interpolating the first signal so it's the same size as the second
Now you can plot both signals in one plot.
Or just use hold on and hold off.

More Answers (1)

Asmit Singh
Asmit Singh on 27 May 2021
If I understood correctly, you are trying to plot 2 signals in a single graph. This documentation should be helpful. You can plot 2 signals in a single graphs using 'hold on'.
x = linspace(-pi,pi);
y1 = sin(x);
hold on
y2 = cos(x);
hold off


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