FIELD: information technologies.
SUBSTANCE: only the frequency pilot-code or the time-and-frequency pilot-code is appointed to each transmitter for use at only temporary by pilot-signal transmission. The pilot-codes can be pseudorandom, orthogonal codes and-or codes with cyclic detrusion. For reception of an estimate of the channel for the transmitter using the time-and-frequency pilot-code, consisting of only temporary code and only the frequency code, the receiver multiplies a set of the accepted figures for each continuance of a figure by a set of code values for only frequency code for the purpose of reception of a gang of the found out figures and carries out inverse discrete Fourier transform (IDFT) of the set of the found out figures for the purpose of reception of an initial estimate of the pulsing performance. The receiver carries out comparison of a code by set of initial estimates of the pulsing performance output for set of continuances of a figure, with only temporary code for the purpose of reception of a definitive estimate of the pulsing performance for the demanded transmitter. The receiver maintains the first L taps of the channel and zeros other taps of the channel where L represents the expected length of the channel.
EFFECT: maintenance of an estimate of the channel in the presence of set of transmitters.
68 cl, 12 dwg
