发明名称 |
METHOD AND APPARATUS FOR DETECTING UNCHARACTERISTIC POWER LEVEL CHANGES OF AN OPTICAL SIGNAL |
摘要 |
A monitoring apparatus for detecting uncharacteristic short-term power level changes of an optical signal transmitted through an optical fiber, said monitoring apparatus comprising a power level variance calculation unit adapted to calculate a power level variance on the basis of a long-term power level and a current power level of said optical signal and a short-term variance filter adapted to filter transient changes indicated by the calculated power level variance and to generate a trouble occurrence indication indicating an uncharacteristic short-term power level change, if the filtered power level variance exceeds a predetermined power level variance. |
申请公布号 |
US2014153921(A1) |
申请公布日期 |
2014.06.05 |
申请号 |
US201213693594 |
申请日期 |
2012.12.04 |
申请人 |
ADVA Optical Networking SE |
发明人 |
FOX David;DILLARD, III Lawrence T.;GRAYSON Neil |
分类号 |
H04B10/07 |
主分类号 |
H04B10/07 |
代理机构 |
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代理人 |
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主权项 |
1. A monitoring apparatus for detecting uncharacteristic power level changes of an optical signal transmitted through an optical fiber,said monitoring apparatus comprising:
a power level variance calculation unit adapted to calculate a power level variance on the basis of a long-term power level and a current power level of said optical signal and a short-term variance filter adapted to filter transient changes indicated by the calculated power level variance and to generate a trouble occurrence indication indicating an uncharacteristic short-term power level change, if the filtered power level variance exceeds a predetermined power level variance.
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地址 |
Meiningen OT Dreissigacker DE |