| 摘要 |
The present invention relates generally to impairment detection and compensation in a communications network. One embodiment includes a method for generating an adaptive Digital Impairment Learning (DIL) sequence for use in a training mode which assists in resolving digital loss ambiguities affecting the mapping of analog levels to digital levels in a communications network. The method includes identifying a feature octet for a pair of the digital loss ambiguities, determining a number of transmit copies of the feature octet based at least in part upon a noise variance, and modifying a standard DIL sequence with the number of transmit copies of the feature octet to produce the adaptive DIL sequence for use in the training mode. Alternate embodiments relate to an apparatus for generating an adaptive DIL sequence for use in a training mode and an apparatus and method for compensating for digital losses in a communications network.
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