中国物理B ›› 2015, Vol. 24 ›› Issue (8): 84213-084213.doi: 10.1088/1674-1056/24/8/084213

• ELECTROMAGNETISM, OPTICS, ACOUSTICS, HEAT TRANSFER, CLASSICAL MECHANICS, AND FLUID DYNAMICS • 上一篇    下一篇

Estimation of random errors for lidar based on noise scale factor

王欢雪a b, 刘建国b, 张天舒b   

  1. a University of Chinese Academy of Sciences, Beijing 100049, China;
    b Key Laboratory of Environment Optics and Technology, Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Hefei 230031, China
  • 收稿日期:2014-12-07 修回日期:2015-03-19 出版日期:2015-08-05 发布日期:2015-08-05
  • 基金资助:

    Project supported by the Strategic Priority Research Program of the Chinese Academy of Sciences (Grant No. XDB05040300) and the National Natural Science Foundation of China (Grant No. 41205119).

Estimation of random errors for lidar based on noise scale factor

Wang Huan-Xue (王欢雪)a b, Liu Jian-Guo (刘建国)b, Zhang Tian-Shu (张天舒)b   

  1. a University of Chinese Academy of Sciences, Beijing 100049, China;
    b Key Laboratory of Environment Optics and Technology, Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Hefei 230031, China
  • Received:2014-12-07 Revised:2015-03-19 Online:2015-08-05 Published:2015-08-05
  • Contact: Liu Jian-Guo E-mail:jgliu@aiofm.ac.cn
  • Supported by:

    Project supported by the Strategic Priority Research Program of the Chinese Academy of Sciences (Grant No. XDB05040300) and the National Natural Science Foundation of China (Grant No. 41205119).

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摘要：

Estimation of random errors, which are due to shot noise of photomultiplier tube (PMT) or avalanche photodiode (APD) detectors, is very necessary in lidar observation. Due to the Poisson distribution of incident electrons, there still exists a proportional relationship between standard deviation and square root of its mean value. Based on this relationship, noise scale factor (NSF) is introduced into the estimation, which only needs a single data sample. This method overcomes the distractions of atmospheric fluctuations during calculation of random errors. The results show that this method is feasible and reliable.

关键词: atmospheric optics, lidar, random error, noise factor, noise scale factor

Abstract:

Estimation of random errors, which are due to shot noise of photomultiplier tube (PMT) or avalanche photodiode (APD) detectors, is very necessary in lidar observation. Due to the Poisson distribution of incident electrons, there still exists a proportional relationship between standard deviation and square root of its mean value. Based on this relationship, noise scale factor (NSF) is introduced into the estimation, which only needs a single data sample. This method overcomes the distractions of atmospheric fluctuations during calculation of random errors. The results show that this method is feasible and reliable.

Key words: atmospheric optics, lidar, random error, noise factor, noise scale factor

中图分类号:  (Atmospheric and ocean optics)

  • 42.68.-w
42.68.Wt (Remote sensing; LIDAR and adaptive systems) 85.60.Ha (Photomultipliers; phototubes and photocathodes)