RECEPTION APPARATUS FOR MULTIPLE CARRIER TRANSMISSION SYSTEM AND CHANNEL ESTIMATION METHOD IN THE SAME

摘要

A reception device of a multicarrier transmission system and a channel estimation method in the same are provided. An FFT unit of the reception device performs FFT for multicarrier signals transmitted in a transmission device and outputs as signals in the frequency domain. A weight controller calculates a weight through channel estimation using time domain channel synthesis and frequency domain channel synthesis for signals outputted from the FFT unit, generates the final weight by repetitively performing the time domain channel synthesis and frequency domain channel synthesis in a plurality of stage types, and applies the generated final weight to the signals outputted from the FFT unit and outputs the signals. A demodulator performs demodulation and decoding for the signals outputted by the weight controller and restores the signals as the final signals. [Reference numerals] (110) A/D converter; (120) CP canceller; (130) FFT device; (140) Demapper; (150-1,150-2,150-n) Memory; (170) Demodulator; (200) Weight controller; (AA) Demodulated signal