Synchronized agile beam scanning of coherent continuous-wave doppler lidars for high-resolution wind field characterization

Mikael Sjöholm*, Nikolas Angelou, Michael Courtney, Ebba Dellwik, Jakob Mann, Torben Krogh Mikkelsen, Anders Tegtmeier Pedersen

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

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Abstract

Developments of coherent continuous-wave lidar technologies for detailed studies of the three components of wind fields in the three-dimensional space has been pursued at DTU Wind Energy during the last decade with a concept called WindScanner. Since a single lidar only measures the wind component along the laser beam, the concept builds on synchronized agile beam-scanning of several lidars. The technological developments including synchronized double-prism-based scanning and an all-fiber in-phase and quadrature direction detection scheme are described. Several different instrument implementations have been realized and application examples from wind energy, structural design, aviation, boundary-layer meteorology, and recently also forestry and detailed studies in wind tunnels are highlighted. The wind lidar developments has not only proven to provide useful remote-sensing tools for wind field characterization at high spatial and temporal resolution but also holds prospects as tools for calibrating traditional point-monitoring anemometric devices which currently is investigated.
Original languageEnglish
Title of host publicationProceedings of the 19th Coherent Laser Radar Conference
PublisherCooperative Institute for Research in Environmental Sciences
Publication date2018
Pages70-73
ISBN (Print)9781510870338
Publication statusPublished - 2018
Event19th Coherent Laser Radar Conference - Okinawa Institute of Science and Technology Graduate University, Okinawa, Japan
Duration: 18 Jun 201821 Jun 2018
Conference number: 19
https://clrccires.colorado.edu/

Conference

Conference19th Coherent Laser Radar Conference
Number19
LocationOkinawa Institute of Science and Technology Graduate University
Country/TerritoryJapan
CityOkinawa
Period18/06/201821/06/2018
Internet address
SeriesProceedings of the Coherent Laser Radar Conference (CLRC)
Volume19

Keywords

  • Continuous-wave lidar
  • Doppler wind lidar
  • Double-prism scanner
  • Synchronized multiple beam scanning
  • Windscanner

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