E. An AM signal cannot be demodulated without coherent demodulation techniques.

iii) (10pt) Derive the average probability of error based on \( \eta_{\text{MAP}} \) in part ii). Hint: \( Q(x) \triangleq \int_{x}^{\infty} \frac{1}{\sqrt{2\pi}} e^{-\frac{y^2}{2}} dy \) and \( Q(-x) = \int_{-\infty}^{x} \frac{1}{\sqrt{2\pi}} e^{-\frac{y^2}{2}} dy \).

題組內容

E. An AM signal cannot be demodulated without coherent demodulation techniques.

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