| 摘要 |
A cycle prefix component of a received OFDM modulation signal is extracted, the extracted cycle prefix component is subjected Fourier transformation, an absolute value square of the component is calculated, periodicity of an envelope of the absolute value square value is detected, and a frequency error of the OFDM modulation signal is determined on the basis of the phase of the periodicity. Thus, the detection of a frequency offset at a reception time of the OFDM modulation signal can be performed by a simple arrangement. <IMAGE> |
