Q.1 Is there any Phase ambiguity in the demodulated data? If yes, how it can be resolved?
A) Yes. But it can’t be resolved
B) No. Phase ambiguity is there
C) Yes. Can be resolved using line coders
D) None of these
Q.2 Can differential phase-shift keying (DPSK) has coherent or Non-Coherent detection of signal?
A) Coherent
B) Non - Coherent
C) Both
D) None of these
Q.3 The BER of QPSK is exactly the same as the BER of BPSK?
A) True
B) False
C) No Relation
D) None of these
Q.4 The expression of Probability of error for BPSK signal is?
