• Electro-Optic Technology Application
  • Vol. 25, Issue 5, 58 (2010)
LIU Jing1, QIAO Xue-guang1,2, WEI Ting1, GAO Hong1, and FENG Hong-fei1
Author Affiliations
  • 1[in Chinese]
  • 2[in Chinese]
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    DOI: Cite this Article
    LIU Jing, QIAO Xue-guang, WEI Ting, GAO Hong, FENG Hong-fei. Design of Demodulating Circuit for Rayleigh Backscatter Signal[J]. Electro-Optic Technology Application, 2010, 25(5): 58 Copy Citation Text show less

    Abstract

    Optical time domain reflectometer plays a very important role in the test of optical fiber system, how to improve its resolution and dynamic range has become a difficulty.In order to make the designed demodu-lation system to achieve the requirements for measuring accuracy and dynamic range, the Xilinx xc3s400and USB singlechip were adopted as the main core device, the functions such as A/D sampling and communications were completed respectively, A/D takes12150Mbps fast-sampling chips to accomplish the quantization of the measurement.Communications are realized in USB communication mode, in order to realize data collection and data transfer between PC.A data transfer rate reached over30M.In developing visual graphic interface PC complete data processing and results.
    LIU Jing, QIAO Xue-guang, WEI Ting, GAO Hong, FENG Hong-fei. Design of Demodulating Circuit for Rayleigh Backscatter Signal[J]. Electro-Optic Technology Application, 2010, 25(5): 58
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