| 摘要 |
PROBLEM TO BE SOLVED: To prevent reduction of an error rate by absorbing an amplitude difference between a reception sub spectrum and a sub spectrum replica.SOLUTION: According to a reception method, a transmission signal is divided into a plurality of sub spectrums and disposed on a frequency axis in a distributed manner, A/D conversion is performed on a signal of which the amplitude is automatically adjusted by receiving a signal that is transmitted while canceling its partial band, the sub spectrums disposed on the frequency band in the distributed manner are extracted, and demodulation processing is performed on a band combined signal. The band combined signal is temporarily demodulated and re-modulated to produce a transmission signal replica and a sub spectrum replica corresponding to the canceled partial band is generated. An average amplitude value of flat parts excluding shift bands in the band combined signal is measured, an amplitude of the transmission signal replica or the sub spectrum replica is controlled to be matched with the average amplitude value, the band combined signal and the amplitude controlled sub spectrum replica are combined and a resultant signal is demodulated. |
