| 摘要 |
<p>Receiving equipment comprising a demodulator (3), a timing extraction unit (4), a PLL unit (7), an impulse recovery unit (12), a fix-equalizer (13), and an automatic-equalizer (14). A timing pull-in operation is performed by recovering the impulse from a training signal containing an impulse component and received at the time of initial training of the receiving equipment, setting a complex conjugate of the recovered impulse as the tap coefficient (CJ) for the fix-equalizer (13), calculating the ta coefficient for the automatic-equalizer (14) from the recovered impulse to set it initially to the automatic-equalizer (14), and setting the amount of phase rotation to phase rotating means (6) so that the phase of the timing signal from the timing extraction unit (4) coincides with the phase of an internal clock. </p> |
