Matlab code of image

4 次查看（过去 30 天）

rosee 2024-2-21

评论： rosee 2024-2-21

Hello, could you assist me in creating this figure in MATLAB?

DGM 2024-2-21

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.

rosee 2024-2-21

Thank you, I think this is the real part of DFT Matrix.

在 Help Center 和 File Exchange 中查找有关 Discrete Fourier and Cosine Transforms 的更多信息

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

Translated by