psk_qpsk_8psk.m

Modulation techniques. Matlab using and very user friendly

echo on;
T=1;
M=2;
Es=T/2;
fc=6/T;
N=100;
delta_T=T/(N-1);
t=[0:delta_T:T];
u0=sqrt(2*Es/T)*cos(2*pi*fc*t);
u1=sqrt(2*Es/2)*cos(2*pi*fc*t+2*pi/M);
u2=sqrt(2*Es/2)*cos(2*pi*fc*t+4*pi/M);
u3=sqrt(2*Es/2)*cos(2*pi*fc*t+6*pi/M);
u4=sqrt(2*Es/2)*cos(2*pi*fc*t+8*pi/M);
u5=sqrt(2*Es/2)*cos(2*pi*fc*t+10*pi/M);
u6=sqrt(2*Es/2)*cos(2*pi*fc*t+12*pi/M);
u7=sqrt(2*Es/2)*cos(2*pi*fc*t+14*pi/M);
subplot(3,1,1);
plot(t,u0);
subplot(3,1,2);
plot(t,u1);
subplot(3,1,3);
plot(t,u2);
subplot(8,1,4);
plot(t,u3);
subplot(8,1,5);
plot(t,u4);
subplot(8,1,6);
plot(t,u5);
subplot(8,1,7);
plot(t,u6);
subplot(8,1,8);
plot(t,u7);