5.6.3 MPSK {,an} {,an,} MPSK (Carrier-phs) s(t) r(t)= Recv s (t)+n(t) In many simple 1,2.Ml case the gr(t)is a rect pulse,and the The signals:s()=gr()cos x+ A MF-ML receiver is given by, MF is equivalent to an integrator. =Ang()cos2πfc1-Ang()sin2πfl r() ←cos2对l Min- (gcos2. Dist The basis: %0=是，0si如2 Prob of err is computed by, r(t) ⑧8(T-0 L=T Two sync demod.that requires: c0s2河 The local cos/sin are coherent with the carriers in recv sig. 。 The sampler/integrator is synchronous with the symbols in recv sig. UESTC-Digital transmission through the AWGN channel Prof李晓峰 3