📄 mod_qam_020612b.m
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function y = mod_qam_020612b (x,n,M)
global k Fc Fd Fs n Fs_n;
%modulate x with wc.
Wc_I = cos(2*pi*n*Fc); %generate the Carrier Waveform
Wc_Q = sin(2*pi*n*Fc);
I = fix ( x/4 );
Q = mod ( x,4 );
d = sqrt(2) / (4-1);
y_I = (-d/2*3 + d * I).*Wc_I;
y_Q = (-d/2*3 + d * Q).*Wc_Q;
y = y_I + y_Q;
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