| 摘要 |
<p>In a QAM communications system (10, 60), a novel synchronizing sequence of vectors (S11, S12,...S1n; S21, S22,...S2n; S31, S32,...S3n; S41, S42,...S4n) added to the information channels (32, 34, 36, 38) simplify acquisition of timing and synchronization by a receiver (60). Such synchronization vectors (S11, S12,...S1n; S21, S22,...S2n; S31, S32,...S3n; S41, S42,...S4n) provide signals for improved AFC control signal generation.</p> |
