Patent ID: 8416844
Filing Date: 2013-04-09
Classification: H04L

Abstract:
1. An OFDM receiving apparatus for receiving an OFDM signal, the OFDM receiving apparatus comprising: a Fourier transform section configured to transform a signal in a time domain into a signal in a frequency domain; an equalization section configured to calculate a transmission path frequency response from the signal in the frequency domain outputted by the Fourier transform section, and perform equalization processing on the signal in the frequency domain based on the transmission path frequency response; and a synchronization section configured to establish synchronization and determine a shift amount based on profile information of an arrival wave, wherein the equalization section includes a carrier interpolation section configured to shift, in calculating the transmission path frequency response, a position of a passband which is narrower than a guard interval of the OFDM signal according to the shift amount determined by the synchronization section, which is determined so as to increase energy of the transmission path frequency response included in the passband, and wherein the synchronization section obtains the profile information of the arrival wave by calculating a correlation among guard intervals of the OFDM signal.