OUTPUT Graphs

Continus time funcition CTSignalGraph ECE301Fall2008mboutin.jpg

DT function that is periodic DTSignalPeriodic ECE301Fall2008mboutin.jpg

DT function taht is not periodic DTSignalNonPeriodic ECE301Fall2008mboutin.jpg

CT function that is not periodic CTSignalNonPeriodic ECE301Fall2008mboutin.jpg

DT function that was made by repeating nonperiodic CT functions CT2DTSignalPeriodic ECE301Fall2008mboutin.jpg

MATLAB CODE

F0 = 17/(2*pi);
T0 = 1/F0;
Ts = .0001;

t = [0:Ts:2*T0]; %time for 2 cycles of wave

x = real(5*exp(j*F0*2*pi*t));

figure(1)
plot(t,x)
title('CT Signal');

% change sampleing rate to be periodic DT signal
t = [0:.01:2*T0];
x = real(5*exp(j*F0*2*pi*t));

figure(2)
plot(t,x, '.');
title('sample rate of .01');

figure(3)
t = [0:.013:2*T0];
x = real(5*exp(j*F0*2*pi*t));
plot(t,x, '.');
title('sample rate of .013');

% non periodic function turned periodic.

t = [0:.01:1];
x = exp(t);

% non periodic 
figure(4)
plot(t,x)

t1 = [0:.1:1];
t2 = [1:.1:2];
t3=[2:.1:3];
t4 =[t1 t2 t3];
x = [exp(t1) exp(t1) exp(t1)];

% repeated non periodic to be periodic
figure(5)
plot(t4,x,'.');

Alumni Liaison

Ph.D. 2007, working on developing cool imaging technologies for digital cameras, camera phones, and video surveillance cameras.

Buyue Zhang