FFT WINDOWS POSITION RECOVERY, RECEIVER FOR DIGITAL RADIO MONDIALE COMPRISING THE SAME AND METHOD THEREFOR

摘要

PURPOSE: A digital radio for broadcast receiving device and FFT location of window restoring method having the FFT location of window reconstitution device, and this is restored to the former state the location of the FFT window which is changed by revising the location of the FFT window based on the position offset estimation value calculating. CONSTITUTION: According to a FFT part(120) is the location of the FFT window, the OFDM symbol is fourier transformation performed the high speed. The FFT window location compensation part(130) is input the OFDM symbol which is Fourier transformed the high speed. The FFT window location compensation part produces the position offset estimation value of the FFT window by leveling the phase swinging value of a plurality of reference cells included in the OFDM symbol. The FFT window location compensation part revises the location of the FFT window based on the position offset estimation value calculating as described above.