Which of the following is not a detection technique used for detection of ?/4 QPSK signals?
A) baseband differential detection
B) if differential detection
C) fm discriminator detection
D) envelope detection
Correct Answer:
Verified
Q15: In BPSK, the_ of constant amplitude carrier signal
Q16: BPSK uses non-coherent demodulator.
Q17: DPSK uses coherent form of PSK.
Q18: In DPSK system, input signal is differentially
Q19: QPSK has_ the bandwidth efficiency of BPSK.
A)twice
B)same
C)half
D)four times
Q20: QPSK provides twice the bandwidth efficiency and_ energy
Q21: What is the full form of OQPSK?
A)optical
Q22: The bandwidth of OQPSK is_ to QPSK.
A)identical
B)twice
C)half
D)four times
Q23: QPSK signals perform better than OQPSK in
Q25: Which of the following is a combined
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