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基于小波变换的光纤周界定位系统

钟翔 张春熹 林文台 梁生

钟翔, 张春熹, 林文台, 等 . 基于小波变换的光纤周界定位系统[J]. 北京航空航天大学学报, 2013, 39(3): 396-400.
引用本文: 钟翔, 张春熹, 林文台, 等 . 基于小波变换的光纤周界定位系统[J]. 北京航空航天大学学报, 2013, 39(3): 396-400.
Zhong Xiang, Zhang Chunxi, Lin Wentai, et al. Fiber-optic perimeter location system based on wavelet transformation[J]. Journal of Beijing University of Aeronautics and Astronautics, 2013, 39(3): 396-400. (in Chinese)
Citation: Zhong Xiang, Zhang Chunxi, Lin Wentai, et al. Fiber-optic perimeter location system based on wavelet transformation[J]. Journal of Beijing University of Aeronautics and Astronautics, 2013, 39(3): 396-400. (in Chinese)

基于小波变换的光纤周界定位系统

详细信息
    作者简介:

    钟翔(1985-),男,江西赣州人,博士生,zhx2005zhwh@126.com.

  • 中图分类号: TP212.14

Fiber-optic perimeter location system based on wavelet transformation

  • 摘要: 为提高基于双Mach-Zehnder干涉仪结构的光纤周界定位系统的定位精度,对信号频率范围及信噪比对系统定位精度的影响进行了理论分析和仿真研究.在此基础上,提出在选用光缆时需要兼顾对外界振动的敏感性和对外场复杂环境的适应性,以确保在长期可靠运行的前提下,扩展采集信号的频率范围;使用小波阈值降噪算法,提取振动信号的有效频率成分,滤除噪声,提高信噪比.最后进行了监测距离31 km的外场实验,验证了所选用光缆的优良性能和小波降噪算法的有效性.

     

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出版历程
  • 收稿日期:  2012-02-21
  • 网络出版日期:  2013-03-31

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