| 摘要 |
An orthogonal frequency division multiplexing (OFDM) demodulator (15) demodulates an OFDM signal constituted by OFDM symbols each including at least an effective symbol and a scattered known signal. The OFDM demodulator (15) includes a Fourier transform performing unit (16), a known signal extracting unit (17a), a time dimension interpolation unit (17b), a delay spread generating unit (19), a frequency dimension interpolation unit (17c), and a waveform equalizing unit (17d). The delay spread generating unit (19) employs a time difference between a time point for a starting position of the Fourier transform operation performed by the Fourier transform performing unit (16) and a time point at which a latest arriving path arrived as the delay spread. |
