Recovery of the transmitted message

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Question: The description given above of the process in Figure for recovery of the transmitted message assures that the transmitter and receiver have access to a common clock (so that each may generate the function coswet). The scheme is referred to as synchronous demodulation for this reason. If there is a timing error between the transmitter and receiver, the receiver implements the above scheme with a shifted sinusoid in the demodulator shown in Figure.

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Show that in this case the recovered message is diminished by a factor of cos(α) over the result in the ideal case.

Reference no: EM131588400

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