Journal of Infrared and Millimeter Waves, Volume. 40, Issue 4, 516(2021)

Observation and data processing of offshore wind field based on UAV-borne Doppler lidar

Qi-Chao WANG1, Song-Hua WU1,2、*, Hong-Wei ZHANG1, Bing-Yi LIU1,2, and Kai-Lin ZHANG1
Author Affiliations
  • 1Institute for Advanced Ocean Study, College of Information Science and Engineering, Ocean Remote Sensing Institute, Ocean University of China, Qingdao 266100, China
  • 2Laboratory for Regional Oceanography and Numerical Modeling, Pilot National Laboratory for Marine Science and Technology, Qingdao 266237, China
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    Figures & Tables(23)
    Schematic and structure diagram of the airborne coherent Doppler lidar system
    Schematic diagram of heat-removal system
    Observation modes of the airborne coherent Doppler lidar
    Attitude information of the airborne coherent Doppler lidar
    Correction of airborne coherent Doppler lidar radial pointing angle
    Flow diagram of airborne coherent Doppler lidar radial velocity correction
    Velocity information of airborne coherent Doppler lidar
    Velocity information of airborne coherent Doppler lidar
    Shipborne UAV ocean observation system
    Experimental area and route design
    Wind THI diagram obtained by ACDL on 2016.11.20
    Wind THI diagram obtained by ACDL on 2016.12.17
    Wind THI diagram obtained by ACDL on 2016.12.18
    Wind THI diagram obtained by ACDL on 2016.12.19
    Wind THI diagram obtained by GCDL on 2016.12.19
    Comparison of 10-minutes average wind profile between GCDL and ACDL
    Comparison of wind speed and wind direction between GCDL and ACDL
    Marine atmospheric boundary layer and wind profile obtained by ACDL
    • Table 1. Specifications of the airborne coherent Doppler lidar

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      Table 1. Specifications of the airborne coherent Doppler lidar

      指标具体参数
      激光波长1.5 µm
      脉冲能量100 µJ
      脉冲宽度200 ns
      脉冲重复频率10 kHz
      径向距离分辨率30 m
      测量高度范围30~3000 m
      风速测量范围± 60 m/s
      功耗90 W
      重量23.2 kg
      尺寸460 mm × 370 mm × 270 mm
      人眼安全标准EN60825-1:2007
    • Table 2. Attitude and motion parameters of the airborne coherent Doppler lidar

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      Table 2. Attitude and motion parameters of the airborne coherent Doppler lidar

      a. 翻滚角 α (IRS)b. 俯仰角 β (IRS)c. 航向角γ (IRS)
      d. 纬度 (GPS)e. 经度 (GPS)f. 海拔高度 (GPS)
      g. 前向速度 (IRS)h. 横向速度 (IRS)i. 垂向速度 (IRS)
    • Table 3. Specifications of the Z-5 unmanned helicopter

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      Table 3. Specifications of the Z-5 unmanned helicopter

      指标具体参数
      最大飞行高度≥3500 m
      巡航半径≥100 km
      抗风能力6级
      续航能力4 h
      载荷能力50 kg
      数据传输能力实时数据传输速率4 Mbps
    • Table 4. Specifications of the ground-based coherent Doppler lidar

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      Table 4. Specifications of the ground-based coherent Doppler lidar

      指标具体参数
      激光波长1.5 µm
      脉冲能量160 µJ
      脉冲宽度100/200 ns可调
      脉冲重复频率10 kHz
      径向距离分辨率15/30 m可调
      测量范围100~3000 m
      数据刷新率1~10 Hz
      风速测量范围± 37.5 m/s
      风速测量精度0.1 m/s
    • Table 5. Typical offshore wind data observed by ACDL

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      Table 5. Typical offshore wind data observed by ACDL

      时间航线飞行高度最大风速高风速带位置观测到的典型现象
      2016年11月20日沿岸航线1 200 m9.8 m/s海拔100~400 m近海面区域高风速带
      2016年12月17日海岛航线1 200 m8.3 m/s海拔700~1 100 m海岛地形引起的高空风速变化
      2016年12月18日近海航线1 200 m9.9 m/s海拔70~1 000 m海上大气风场的水平稳定结构
      2016年12月19日近海航线1 200 m11.8 m/s海拔400~1 100 m海上大气风场的垂直稳定结构
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    Qi-Chao WANG, Song-Hua WU, Hong-Wei ZHANG, Bing-Yi LIU, Kai-Lin ZHANG. Observation and data processing of offshore wind field based on UAV-borne Doppler lidar[J]. Journal of Infrared and Millimeter Waves, 2021, 40(4): 516

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    Paper Information

    Category: Research Articles

    Received: Sep. 21, 2020

    Accepted: --

    Published Online: Sep. 9, 2021

    The Author Email: Song-Hua WU (wush@ouc.edu.cn)

    DOI:10.11972/j.issn.1001-9014.2021.04.011

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