FIELD: physics; communication.
SUBSTANCE: invention concerns data transmission, in particular, to a time binding in system of the information transfer using multiplexing with orthogonal frequency-division multiplexing (OFDM-system). In the way synchronisation of a time binding of the receiver with the received signal, multiplexed with orthogonal frequency-division multiplexing, (OFDM-signal) is carried out. The first coming into synchronism is carried out with the first received pilot data, multiplexed with time-division multiplexing, (TDM-data) for definition of a rough estimate of a time binding of the received OFDM-signal. The second coming into synchronism is carried out with the second pilot TDM-data for definition of an exact estimation of a time binding for an OFDM-symbol of the received OFDM-signal. At the second coming into synchronism, total energy of discrete values of the channel on a detection window is defined, and the back edge of the total energy curve is found out. Position of an outliner of Fourier transformation (FT) for the subsequent OFDM-symbols is adjusted according to the information on back edge.
EFFECT: increase of synchronisation accuracy.
38 cl, 21 dwg
