17 lines
536 B
Matlab
17 lines
536 B
Matlab
% Lab 1
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% Question 1 on aliasing
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fs=100; % Sampling frequency [Hz]
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ts=1/fs; % Sampling period [s]
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n=0:1:9; % Sample indicies
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x20(n+1)=cos(2*pi*20*n*ts); % x[n] with f = 20 [Hz]
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x80(n+1)=cos(2*pi*80*n*ts); % x[n] with f = 80 [Hz]
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subplot(211) % Start top sub plot
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stem(n,x20,'linewidth',2) % Plot samples of x[n] with f = 20[Hz] for all n
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subplot(212) % Start bottom sub plot
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stem(n,x80,'linewidth',2) % Plot samples of x[n] with f = 80[Hz] for all n
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xlabel('f = 20 and 80 Hz'); % Label the x axis
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