Performance verification of mobile Doppler wind lidar

Kaixin Wang, Xu Zhang, Zhifeng Lin, Chunqing Gao*

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Coherent Doppler wind lidar has made significant progress in wind profile measurement because of its high temporal and spatial resolution. All-fiber Coherent Doppler wind lidar has caused most interest in mobile wind detection due to its excellent stability and reliability. A theoretical model was analyzed based on the signal-to-noise ratio (SNR) function, the SNR of continuous-wave and pulsed lidar with different focusing distances was evaluated. A 1550 nm all-fiber mobile Doppler wind lidar was designed for wind profile measurement. The system consists of a narrow-linewidth seed laser, a single-mode fiber amplifier, transceiver optics, and a data processing system. In order to verify the performance of the mobile laser lidar, a velocity calibration experiment was carried out on a moving car with a speed of 10-30 m/s in December 2020. The wind velocity of laser lidar and ultrasonic anemometers was measured and compared with a different elevation angle of laser. Results show good agreement between both measurements. The correlation coefficient is great than 0.96, and the standard deviation of velocity is less than 0.79 m/s.

Original languageEnglish
Title of host publication2021 International Conference on Optical Instruments and Technology
Subtitle of host publicationAdvanced Laser Technology and Applications
EditorsZhiyi Wei, Chunqing Gao, Pu Wang
PublisherSPIE
ISBN (Electronic)9781510655652
DOIs
Publication statusPublished - 2022
Event2021 International Conference on Optical Instruments and Technology: Advanced Laser Technology and Applications - Virtual, Online, China
Duration: 8 Apr 202210 Apr 2022

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume12280
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Conference

Conference2021 International Conference on Optical Instruments and Technology: Advanced Laser Technology and Applications
Country/TerritoryChina
CityVirtual, Online
Period8/04/2210/04/22

Keywords

  • Doppler wind lidar
  • Signal-to-noise ratio
  • Velocity calibration

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