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高分辨率光时域反射计的技术研究

The Key Technology Research of High-resolution Optical Time Domain Reflectometer

【作者】 李立功

【导师】 余晓芬; 毛继宏;

【作者基本信息】 合肥工业大学 , 仪器仪表工程, 2004, 硕士

【摘要】 高分辨率光时域反射计是用于测试光纤或光缆线路的性能以及用于故障精确定位的光纤通信测试仪器。本文对高分辨率光时域反射计的原理、设计进行了分析,对其中的关键技术作了阐述,提出并采用数字控制精密延时、顺序采样合成法,运用窗口采样技术,有效解决了大数据量的采集处理、全迹显示和局部测量等实时性问题,实现了256km量程下0.1m分辨率的动态采样。

【Abstract】 High-resolution optical time domain reflectometer is a measurement instrument for optical fiber communications. It can be used to locate the faults and measure the characteristics of optical fibers or cables. In this paper, the principle of model high-resolution OTDR is described, the design is analyzed, and the main techniquesis discussed, the research using digital_ control accurate delay fororderly sample synthesis and Using window sample technology is introduced. We have solved the problems of real time operation in processing and displaying large volume of data, and realized dynamic sample with 0.1m resolution at range of 256km.

  • 【分类号】TH74
  • 【被引频次】12
  • 【下载频次】401
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