(a) Show that an analog output waveform (which is proportional to the original input analog waveform) may be recovered from a naturally sampled PAM waveform by using the demodulation technique shown in Fig. 3–4.
(b) Find the constant of proportionality, C, that is obtained with this demodulation technique, where w(t) is the original waveform and Cw(t) is the recovered waveform. Note that C is a function of n, where the oscillator frequency is .
Fig. 3–4
