Laser & Optoelectronics Progress, Volume. 58, Issue 12, 1201001(2021)

Analysis of Airborne Lidar Bathymetry Distance Based on Conformal Diffractive Optical System

Jinghan Gao1,2, Daojing Li1、*, Kai Zhou1,2, Anjing Cui1,2, and Jiang Wu1,2
Author Affiliations
  • 1National Key Laboratory of Microwave Imaging Technology, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing 100190, China
  • 2University of Chinese Academy of Sciences, Beijing 100049, China
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    Figures & Tables(8)
    Model of the ALB. (a) Equivalent schematic diagram of the altitude; (b) equivalent schematic diagram of θT and θr
    Schematic diagram of the airborne lidar system. (a) Front view; (b) side view
    Two-dimensional scanning optical path of the diffractive optical system
    Structure of the laser local oscillator array detector
    Relationship between of the detection depth and the RSN of the conformal diffractive optical system. (a) Day; (b) night
    Relationship between detection depth and RSN after the introduction of the local oscillator laser
    • Table 1. Parameters of the photoelectric detection system

      View table

      Table 1. Parameters of the photoelectric detection system

      ParameterValue
      Id /A10-12
      s(λ) /(A·W-1)0.043
      T /K300
      RL /MΩ50
    • Table 2. Parameters of our system

      View table

      Table 2. Parameters of our system

      ParameterValueParameterValue
      H /m500ρw0.02
      PT /mW1ρs0.10
      τ /ns10ηato0.64
      θr /mrad50η0.30
      D /m0.6LS /(W·m-2·nm-1·sr-1)0.14
      θT /μrad50α /m-10.08
      PRF /Hz5000B /MHz100
      m8Δλ /nm0.01
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    Jinghan Gao, Daojing Li, Kai Zhou, Anjing Cui, Jiang Wu. Analysis of Airborne Lidar Bathymetry Distance Based on Conformal Diffractive Optical System[J]. Laser & Optoelectronics Progress, 2021, 58(12): 1201001

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    Paper Information

    Category: Atmospheric Optics and Oceanic Optics

    Received: Oct. 12, 2020

    Accepted: Dec. 10, 2020

    Published Online: Jun. 18, 2021

    The Author Email: Daojing Li (lidj@mail.ie.ac.cn)

    DOI:10.3788/LOP202158.1201001

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