| 摘要 |
PURPOSE:To enable faster initial acquisition by performing the initial acquisition by a hard decision DMF system and then performing data regeneration and DLL control on a time-division basis by a sliding system. CONSTITUTION:A sliding part 5 performs time-division product sum arithmetic by using an arrival false noise signal outputted by an A/D converter 2, three different-phase local false noise signals outputted by a local false noise signal generation part 7. Namely, product sum arithmetic for inverse spread and product sum arithmetic between two phase leading and lagging local false noise signals and arrival false signal for obtaining a signal for the DLL signal are performed on a time-division basis. Then when the output is inputted from the sliding part 5 to a data demodulation part 10, the output of the inverse speed is extracted from the time-divided signal, its polarity is decided to demodulate data, and regenerated data 11 are outputted. |
