[理工] [通訊]-PAM的錯誤機率
An M-ary PAM, The signal of the PAM is si(t)= Ai 0<t<Ts
0 otherwise
Ai=正負1,3,......到(M-1)
要算他的symbol error 在AWGN下
答案用相關器算出 f(y|Si(t))~N( AiTs, (No/2)Ts )
然後Pe= (1/M){ 2Q[Ts/根號(No/2)Ts]+(M-2)*2Q[Ts/根號(No/2)Ts] }
完全不知道怎麼出來的= =
有強者可以解釋嗎- -?
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