How can I create a signal that contains the sum of two cosine waves of equal amplitude at 40 Hz and 45 Hz

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Ömer Sertt
Ömer Sertt 2018-11-5
评论： Batuhan Osman Aynaci 2021-11-15
The sampling rate must be 1 kHz

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Stephan
Stephan 2018-11-5
编辑：Stephan 2018-11-5
fs = 1000; % Sampling rate 1000 Hz = 1 kHz
t = 0:1/fs:1; % take a sample of 2 seconds with 1 kHz sampling rate
f1 = 40; % Frequency 1
f2 = 45; % Frequency 2
omega_1 = 2*pi*f1; % omega 1
omega_2 = 2*pi*f2; % omega 2
result = cos(omega_1.*t) + cos(omega_2.*t); % calculate sum
plot(t,result) % plot results
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