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matlab code for autocorrelation function

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afifar

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i wanna ask about matlab code for autocorrelation function.

if an input is wide-sense stasioner with autocorrelation function is RXX(t)=10e^(-2|t|).

what is matlab code for that function ?
 

If you are asking the code to compute that Rxx(t) function it is very easy to do that in Matlab:

Code: 
% Define range of t in the interval [-1;1] with steps of 0.01
t = [-1:.01:1];
% Compute the function with input vector t (with absolute values)
R = 10 * exp(-2 * abs(t));
 

kingslayer said:
If you are asking the code to compute that Rxx(t) function it is very easy to do that in Matlab:

Code: 
% Define range of t in the interval [-1;1] with steps of 0.01
t = [-1:.01:1];
% Compute the function with input vector t (with absolute values)
R = 10 * exp(-2 * abs(t));
Click to expand...


Is that all ? how can i decide the mean of output ?
 
Last edited:

Yes, that's all! This is Matlab ;-)

To get the average of a vector (in this case R), just use the following built-in function

Code: 
avg = mean(R);
 
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