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qpsk modulator (need HELP ASAP)

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sudan

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Hi,

We can create QPSK easily. For that first you have to know the process then collect the formulas. One by one you can execute through matlab. Defferent plotting comments are present in Matlab. seeing this in the command window type- help plot
then different plot comments will appear and you can use any one based on your needs.

Regards

Sudan
 

oh..i c...
can u recheck my coding

t = [0:20]
si = (0.5 * sin (20 * pi * t)) + sin ( 40 * pi * t)
sq = (0.7 * sin (30 * pi * t)) + (0.3*sin ( 50 * pi * t))
figure(1);
plot(t,si);
xlabel('Time')
ylabel('Amplitude')
title('I Continous Channel Signal')

figure(2);
plot(t,sq);
xlabel('Time')
ylabel('Amplitude')
title('Q Sampled Channel Signal')

is it correct or not for ploting d i n q signals?heee

tq sudan~
 

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