% Demodulator
function [v_dem] = demodulador(ms)
v_dem=[];
turno=1;
load ENC4.mat
j=sqrt(-1);
for i=1:1:length(ms)
switch turno
case 1
fc=0;
turno=2;
case 2
fc=pi/16;
turno=3;
case 3
fc=pi/8;
turno=4;
case 4
fc=pi/4;
turno=1;
end
pc=ms(i);
s1=cos(fc+pi/4)+j*sin(fc+pi/4);
s2=cos(fc+(3*pi/4))+j*sin(fc+(3*pi/4));
s3=cos(fc+(5*pi/4))+j*sin(fc+(5*pi/4));
s4=cos(fc+(7*pi/4))+j*sin(fc+(7*pi/4));
a(1)=abs(pc-s1);
a(2)=abs(pc-s2);
a(3)=abs(pc-s3);
a(4)=abs(pc-s4);
ma=min(a);
switch ma
case a(1)
v_dem=[v_dem c4(1,1:2)];
case a(2)
v_dem=[v_dem c4(2,1:2)];
case a(3)
v_dem=[v_dem c4(3,1:2)];
case a(4)
v_dem=[v_dem c4(4,1:2)];
end
end
e-REdING. Biblioteca de la Escuela Superior de Ingenieros de Sevilla.
