Question

In binary data transmission DPSK is preferred to PSK because

a.

a coherent carrier is not required to the generated at the receiver

b.

for a given energy per bit, the probability for zero is less

c.

the 180° phase shifts of the carrier

d.

more protection is provided against impulse noise

Answer: (a).a coherent carrier is not required to the generated at the receiver

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Q. In binary data transmission DPSK is preferred to PSK because

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