CHANNEL ESTIMATION METHOD AND DEVICE USING LINEAR INTERPOLATION SCHEME IN ORTHOGONAL FREQUENCY-DIVISION MULTIPLEXING SYSTEM, AND RECEIVER USING SAID METHOD AND DEVICE

摘要

FIELD: information technology.;SUBSTANCE: channel estimation device provided in the receiver detects pilot signals from radio signals and estimates channels of the detected pilot signals. The channel estimation device estimates channels corresponding to data by performing linear interpolation, which allows for simultaneous interpolation on time and frequency axes, by using information on the estimated pilot channels. Thus, the memory capacity required for the receiver can be reduced using channel estimation in which the simultaneous interpolation is performed. Also the performance of the receiver can be further improved in a wireless environment where the receiver moves at high speed.;EFFECT: improvement of receiver performance, deterioration of which is currently caused by that large memory capacity is required for performing interpolation on the frequency axis since the interpolation interval on the time axis is fixed.;14 cl, 13 dwg