Double-sideband frequency scanning interferometry for long-distance dynamic absolute measurement
作者: Di MoRan WangGuang-zuo LiNing WangKe-shu ZhangYi-rong Wu
作者单位: 1Chinese Academy of Sciences
2University of Chinese Academy of Sciences
3Jiao Tong University
刊名: Applied Physics B, 2017, Vol.123 (11)
来源数据库: Springer Nature Journal
DOI: 10.1007/s00340-017-6849-x
英文摘要: Absolute distance measurements can be achieved by frequency scanning interferometry which uses a tunable laser. The main drawback of this method is that it is extremely sensitive to the movement of targets. In addition, since this method is limited to the linearity of frequency scanning, it is commonly used for close measurements within tens of meters. In order to solve these problems, a double-sideband frequency scanning interferometry system is presented in the paper. It generates two opposite frequency scanning signals through a fixed frequency laser and a Mach–Zehnder modulator. And the system distinguishes the two interference fringe patterns corresponding to the two signals by IQ demodulation (i.e., quadrature detection) of the echo. According to the principle of double-sideband...
原始语种摘要: Absolute distance measurements can be achieved by frequency scanning interferometry which uses a tunable laser. The main drawback of this method is that it is extremely sensitive to the movement of targets. In addition, since this method is limited to the linearity of frequency scanning, it is commonly used for close measurements within tens of meters. In order to solve these problems, a double-sideband frequency scanning interferometry system is presented in the paper. It generates two opposite frequency scanning signals through a fixed frequency laser and a Mach–Zehnder modulator. And the system distinguishes the two interference fringe patterns corresponding to the two signals by IQ demodulation (i.e., quadrature detection) of the echo. According to the principle of double-sideband...
全文获取路径: Springer Nature  (合作)
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来源刊物:
影响因子:1.782 (2012)

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关键词翻译
关键词翻译
  • scanning 扫描
  • sideband 边带
  • interferometry 干涉量度法
  • frequency 频率
  • distance 距离
  • absolute 绝对的
  • modulation 
  • swept 扫频的
  • tunable 可(协)调
  • solve