| 摘要 |
<p>The present invention relates to the field of network communication, and specifically discloses an adaptive equalization method, including: obtaining a first filter signal according to a first filter coefficient; deciding the first filter signal based on an original constellation map to obtain a first decision signal, and deciding the first filter signal based on a level (n - 1) constellation map to obtain a level (n - 1) pseudo decision signal; comparing the level (n - 1) pseudo decision signal with the first filter signal to obtain a level (n - 1) error signal; if average energy of the level (n - 1) error signal is smaller than a level (n - 1) threshold, switching the level (n - 1) constellation map to a level n constellation map; obtaining an update magnitude of the filter coefficient according to the level (n - 1) error signal and the buffer signals, and obtaining a second filter coefficient according to the update magnitude; obtaining a second filter signal according to the second filter coefficient; and deciding the second filter signal based on the original constellation map to obtain a second decision signal. Embodiments of the present invention also disclose an adaptive equalizer.</p> |
