发明名称 |
Adaptive equalizer tap coefficient correction method and optical receiver |
摘要 |
A method of tap coefficient correction includes: obtaining a synchronization symbol difference between a first polarization and a second polarization orthogonal to the first polarization; obtaining a delay amount of each of the first polarization and the second polarization in an adaptive equalizer; calculating, in a case where a horizontal axis represents a tap number and a vertical axis represents a tap coefficient and a tap number or a nearest tap number with which an area of a drawn figure is halved is set as a gravity center of tap coefficients, a correction reference gravity center of the tap coefficients set in the adaptive equalizer, based on the synchronization symbol difference and the delay amount; and performing a correction of shifting an entire tap coefficients in units of symbol to cause the correction reference gravity center to be closest to a tap center. |
申请公布号 |
EP2763366(A2) |
申请公布日期 |
2014.08.06 |
申请号 |
EP20130193437 |
申请日期 |
2013.11.19 |
申请人 |
FUJITSU LIMITED |
发明人 |
SAITO, TAKU;KOIZUMI, NOBUKAZU;NAKASHIMA, HISAO;TAKEUCHI, OSAMU;ARAKI, HIROFUMI |
分类号 |
H04L25/03;H04B10/61 |
主分类号 |
H04L25/03 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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