In QPSK modulation scheme, to resolve the phase ambiguities, one shoul – McqOptions

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1.	In QPSK modulation scheme, to resolve the phase ambiguities, one should use
A.	staggered QPSK modulation scheme
B.	differential encoding.
C.	filtering.
D.	nothing needed to be done because QPSK modulation itself has got well defined phase transitions.
Answer» C. filtering.

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