how can I plot the spectrogram of a signal?

Hi,

Can you please help me to plot the spectrogram of the signal below

Fs = 1000;            % Sampling frequency

T = 1/Fs;             % Sampling period

L = 1000;             % Length of signal

t = (0:L-1)*T;        % Time vector

S1 = 1.7*cos(2*pi*10*t) + 2*cos(2*pi*20*t)+ 7*cos(2*pi*30*t) + 3*cos(2*pi*40*t)+0.7*cos(2*pi*50*t) + cos(2*pi*60*t)+ 4.7*cos(2*pi*70*t) + 8*cos(2*pi*80*t)+9.7*cos(2*pi*90*t) + 10*cos(2*pi*100*t)+ 17*cos(2*pi*105*t) + 0.5*cos(2*pi*110*t);

Thanks,

Answer 1

[KSSV]

doc spectrogram

https://in.mathworks.com/help/signal/ref/spectrogram.html