5.6.3 MPSK {,a} {,an,} MPSK U (Carrier-phs) s(t) (t)= Recv a. s (t)+n(t) 1,2M1 The signals:5()=g(t)cos x+ Prob of err is computed by, =Aueg(t)cos2πf1-Ang()sin2πf1 B=12=1-r The basis:() =1-∫wfe,s)d0 Ψ() For simple cases of M=2 or 4,BPSK and QPSK π/M R πM E P.=0 No R UESTC-Digital transmission through the AWGN channel Prof李晓峰 7