Abstract: A matched filter calculates correlation values between burst signals received and known data. A moving average unit calculates a moving average for the calculated correlation values in a period based on a guard interval. A detector detects the symbol start timing from the calculated moving average. An FFT unit performs FFT transform on symbols in a posterior part among the received burst signals, based on the detected timing of a symbol.

Abstract: When the transmission rate is 200 Mbps or lower, a switching unit outputs a signal to a first processing unit. When the transmission rate exceeds 200 Mbps, the switching unit outputs a signal to a second processing unit. When the transmission rate acquired in a header decoder is 200 Mbps or lower, the first processing unit subjects an input signal to hard decision and decodes the signal subjected to hard decision. When the transmission rate acquired in the header decoder exceeds 200 Mbps, the second processing unit subjects an input signal to soft decision and decodes the signal subjected to soft decision.