Uncertainties of Optical Fiber Loss Measurements with Backscatter Measrement Methods under the Influence of Noise

He Mingchen

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Uncertainties of Optical Fiber Loss Measurements with Backscatter Measrement Methods under the Influence of Noise

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- Uncertainties of Optical Fiber Loss Measurements with Backscatter Measrement Methods under the Influence of Noise
- Acta Electronica Sinica Issue 5, Pages: 47-53(1990)
- 作者机构：
  
  1. 杭州电子工业学院
  2. 机械电子工业部41所
  3. 杭州电子工业学院机械电子工业部41所
- 作者简介：
- 基金信息：
- DOI：
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- Published：1990
- 稿件说明：
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[1]贺铭琛,梅建华.噪声影响下背向散射法测量光纤损耗的不确定度[J].电子学报,1990(05):47-53.

He Mingchen. Uncertainties of Optical Fiber Loss Measurements with Backscatter Measrement Methods under the Influence of Noise[J]. Acta Electronica Sinica, 1990, (5): 47-53.
[1]贺铭琛,梅建华.噪声影响下背向散射法测量光纤损耗的不确定度[J].电子学报,1990(05):47-53. DOI：

He Mingchen. Uncertainties of Optical Fiber Loss Measurements with Backscatter Measrement Methods under the Influence of Noise[J]. Acta Electronica Sinica, 1990, (5): 47-53. DOI：

摘要

通常测量得到的光纤各种损耗参数不够确切

置信度较低。本文提出“关系函数”概念

将测量不确定度

可接受最低信噪比以及抽样测量次数之间的关系以函数形式定量表示

并导出几种典型的计算公式

实验结果与理论计算相符。

Abstract

Optical fiber loss measurements have always been influenced by noise

resulting in precision degradation and even ambiguity. In this paper

an idea of "Relation Function" is presented which gives quantitative relationship between measurement uncertainty

acceptable minimum signal to noise ratio and number of sampling times at each sampling point."Relation Functions" for typical fiber attenuation measurement methods

splice loss measurement methods

fault location and maximum measurable range determination are derived. Verification experimental results are shown.

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