Suppose that in the receiver of the quadrature-carrier

Suppose that in the receiver of the quadrature-carrier

Suppose that in the receiver of the quadrature-carrier multiplex system of Figure b, the local carrier available for demodulation has a phase error F with respect to the carrier source used in the transmitter and receiver, show that this phase error will cause cross-talk to arise between the two demodulated signals at the receiver outputs. By cross-talk we mean that a portion of one message signals appears at the receiver output belonging to the other message signal, and vice versa.

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