| 摘要 |
<p>The invention relates to a coherent optical receiver (800), comprising: analog-to-digital conversion means (801) configured for sampling an analog coherent optical signal (802) into a digital coherent optical signal (804); channel equalization means (803) configured for equalizing the digital coherent optical signal (804); channel transfer function calculation means (801) configured for calculating a channel transfer function (808) based on the digital coherent optical signal (804) and the equalized digital coherent optical signal (801) interpolated by interpolation means (807a, 807b) and configured for adjusting the channel equalization means (803) based on the calculated channel transfer function (808); phase detection means (809) configured for providing a timing error detection characteristic, TEDC, signal (810), based on the equalized digital coherent optical signal (806); feed- backward timing recovery means (811) configured for adjusting the sampling of the analog-to-digital conversion means (801) based on the TEDC signal (810) with respect to a frequency offset compensation criterion; and feed-forward timing recovery means (813) configured for adjusting the interpolation means (807a, 807b) with respect to a phase offset compensation criterion.</p> |
