Adaptive equalization method and adaptive equalizer
US8982940B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Apr 23, 2013 |
| Grant date | Mar 17, 2015 |
| Priority date | — |
| Expiry date | Sep 4, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2025/037
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
The present disclosure relates to the field of network communication, and specifically discloses an adaptive equalization method, including: obtaining a first filtered signal according to a first filter coefficient; deciding the first filtered signal based on an original constellation map to obtain a first decision signal, and deciding the first filtered signal based on a level (n−1) constellation map to obtain a level (n−1) pseudo decision signal; if average energy of the level (n−1) error signal is less than a level (n−1) threshold, switching the level (n−1) constellation map to a level n constellation map; obtaining a second filter coefficient according to the update magnitude; obtaining a second filtered signal according to the second filter coefficient; and deciding the second filtered signal based on the original constellation map to obtain a second decision signal. Embodiments of the present disclosure also disclose an adaptive equalizer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.