| 摘要 |
A frame timing synchronization method of establishing frame synchronization includes the steps of obtaining an integration result, a plurality of number of times, by integrating the square of a complex reception sample from an arbitrary integration start point while shifting an integration range at predetermined intervals, making a search for the maximum integration result from the plurality of integration results, demodulating (despreading) complex reception samples included in a predetermined range having an integration start point as a center corresponding to the maximum integration result while setting the respective samples as demodulation (despreading) start points, and establishing frame synchronization by detecting the portion modulated (spread) by BPSK from the obtained demodulation (despreading) results. <IMAGE> |
