The Fourier transform P (f) of the basic pulse p(t) used in a certain binary communication system is shown in Fig. P7 .3-4. (a) From the shape of P (f ), explain at what pulse rate this pulse would satisfy Nyquist's criterion. (b) Find p(t) and verify that this pulse does (or does not) satisfy the Nyquist's criterion. ( c) If the pulse does satisfy the Nyquist criterion, what is the transmission rate (in bits per second) and what is the roll-off factor?

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