FIELD: physics, communication.
SUBSTANCE: invention is related to transmission of pilot-signal and assessment of channel for OFDM system with excessive scatter of delay. Large number of pilot-signal subranges are used in every period of symbol. The first and second groups of received symbols of pilot-signal for the first and second sets of pilot-signal subranges are received and used for derivation of the first and second assessments of frequency characteristics. The first and second assessments of pulse characteristic are derived based on the first and second assessments of frequency characteristics, accordingly, and used for derivation of the third assessment of pulse characteristic having more taps (components), than number of pilot-signal subranges in every set.
EFFECT: weakening of hazardous effects of excessive scattering of delay.
51 cl, 19 dwg, 1 tbl
