shift signal in matlab

To shift a signal in Matlab, you can use the circshift function. This function circularly shifts the elements in the input array by a specified number of positions. The shift can be in the forward or backward direction.

Here is an example code snippet that shows how to use the circshift function to shift a signal by a given number of samples:

main.m
% create a signal
t = linspace(0, 2*pi, 100);
x = sin(t);

% shift the signal by 10 samples
y = circshift(x, 10);

% plot the original and shifted signals
plot(t, x, 'r', t, y, 'b--');
legend('Original signal', 'Shifted signal');
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In the above code, we first create a signal x using the sin function. We then use the circshift function to shift the signal x by 10 samples to obtain the shifted signal y. Finally, we plot both signals on the same figure using the plot function, and use the legend function to label the plots.