Process of synchronizing a receiving modem after a training on data
PR Chevillat, E Eleftheriou, DGU Maidwald… - US Patent …, 1991 - Google Patents
In data transmission wherein a transmitting modem transmits data signals to a receiving
modem via a tele phone line, the process of rotating, in the transmitting modem, the phase of
the point of the constellation re sulting from a group of data bits by a predetermined phase
value, and then rotating, after a predetermined delay in the receiving modern, the phase of
the esti mated point resulting from the transformation of the analog signal by the opposite of
said predetermined phase value, and calculating the mean-squared error between the …
modem via a tele phone line, the process of rotating, in the transmitting modem, the phase of
the point of the constellation re sulting from a group of data bits by a predetermined phase
value, and then rotating, after a predetermined delay in the receiving modern, the phase of
the esti mated point resulting from the transformation of the analog signal by the opposite of
said predetermined phase value, and calculating the mean-squared error between the …
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