Matlab code of image
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Hello, could you assist me in creating this figure in MATLAB?
![](https://www.mathworks.com/matlabcentral/answers/uploaded_files/1623038/image.png)
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DGM
il 21 Feb 2024
Well it's been over a decade since I touched signals calc, but it's obviously a cosine sweep. Your spectrogram looks like
w = 3; % just a guess
t = linspace(0,w,1000);
f = linspace(0,w,1000).';
s = cos(2*pi*f.*t);
pcolor(t,f,s)
shading flat
So maybe you could start with that and work back to time domain.
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