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[[Image:untitled12_ECE301Fall2008mboutin.jpg]]
 
[[Image:untitled12_ECE301Fall2008mboutin.jpg]]
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 +
2. for making a periodic siganl
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lets take an example of <math>X=\ e^t</math>
 +
 +
the graph of the function is
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 +
[[Image:nonperiodic12_ECE301Fall2008mboutin.jpg]]
 +
 +
to convert it to periodic we use the following matlabcode
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<pre>
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%referred the code of paul sceffler
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clc
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clear
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 +
t=.01:.01:1;
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x=exp(t);
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i=[];
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for d=1:5
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    i=[i,x];
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end
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 +
t=[.01:.01:5];
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plot(t,i)
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</pre>
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 +
the periodic function thus is
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 +
[[Image:periodic12_ECE301Fall2008mboutin.jpg]]

Latest revision as of 19:18, 11 September 2008

Periodic signal revisited

1. I am considering my example x=cos2t from 0 to 5pi used in the previous homework part 1.E.

Ct ECE301Fall2008mboutin.jpg

sampled at 0.01

Dt0 ECE301Fall2008mboutin.jpg

but converting it to DT and increasing the sampling rate to 0.08 shows a non-periodic set of points

Untitled12 ECE301Fall2008mboutin.jpg

2. for making a periodic siganl lets take an example of $ X=\ e^t $

the graph of the function is

Nonperiodic12 ECE301Fall2008mboutin.jpg

to convert it to periodic we use the following matlabcode

%referred the code of paul sceffler
clc
clear

t=.01:.01:1;
x=exp(t);
i=[];
for d=1:5
    i=[i,x];
end

t=[.01:.01:5];
plot(t,i)

the periodic function thus is

Periodic12 ECE301Fall2008mboutin.jpg

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