How do ı calculate the harmonics by inspecting the signal in matlab?

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astronot
astronot 2014-10-11
回答： Rick Rosson 2014-10-12
such as this signal gf=cos(2*pi*10*t)+ 0.5*sin(2*pi*20*t)+4*cos(2*pi*30*t-pi/3)

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Rick Rosson
Rick Rosson 2014-10-12
dt = t(2) - t(1);
Fs = 1/dt;
pwelch(gf,[],[],[],Fs);

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