发明名称 |
Method and system for determining origin of optical signal quality degradation |
摘要 |
A monitoring system includes first and second evaluation sections for obtaining an averaged Q-factor parameter and a waveform distortion parameter from an optical signal amplitude histogram collected from optical signals under measurement. The monitoring system further includes a third evaluation section for determining both averaged Q-factor parameter and waveform distortion parameter, and for making a decision as to whether the main factor of the optical signal quality degradation is waveform distortion or not by comparing the averaged Q-factor parameter and waveform distortion parameter with their initial values or initial characteristics which are obtained when no optical signal quality degradation is present.
|
申请公布号 |
US2003011837(A1) |
申请公布日期 |
2003.01.16 |
申请号 |
US20020173752 |
申请日期 |
2002.06.19 |
申请人 |
NIPPON TELEGRAPH AND TELEPHONE CORPORATION |
发明人 |
SHAKE IPPEI;TAKARA HIDEHIKO;UCHIYAMA KENTARO |
分类号 |
H04B10/00;H04B10/02;H04B10/079;H04B10/08;(IPC1-7):H04B10/08 |
主分类号 |
H04B10/00 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|