5.6.4QAM {,an} {,an,} QAM (Amp/phs) am s(t) (t)= Recv s (t)+n(t) 1,2.M1 The sionals: 2πm A MF-ML receiver is given by, =Ang()cos2πfc1-Ang()sin2πf61 +⑧面 r() ←cos2对I a Min- The basis:cos2 Dist g0=,0sn2 Prob of err is computed by, UESTC-Digital transmission through the AWGN channel Prof李晓峰 12