| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a frame synchronization system for realizing accurate synchronization even under a multi-path fading environment, a low SNR environment, and an environment wherein a frequency offset exists in a digital communication system. <P>SOLUTION: The frame synchronization system realizes frame synchronization by adopting a synchronous preamble produced by two kinds of synchronous sequences and using a synchronous circuit comprising a first matched filter, a DBPSK demodulation section, a second matched filter, and a synchronization position discrimination section. <P>COPYRIGHT: (C)2006,JPO&NCIPI |
