Sensitivity of space and time on scanning LiDAR data correlation and the implications on synchronisation of bi-static systems

Alexander Cassola, Matthew Stickland, Andrew Oldroyd, Brian Gribben, Neil Adams, Breanne Gellatly

Research output: Contribution to conferencePaper

Abstract

When possible, running a cross comparison between two or more instruments that are out on the field is an important check for accuracy, consistency and reliability of the instruments in question. As part of the Carbon Trust OWA Offshore wakes campaign, two scanning LiDAR systems were deployed to give near full coverage of the host offshore wind farm.
As part of the programme, periodic checks were performed to give confidence on how each system was performing, and that system output remained consistent. The LiDARs were several kilometres apart and the scan patterns were not synchronised temporally or spatially. It was, however, possible to pick out data points from the two LiDAR data sets that could be used for such a cross comparison based on their spatial and temporal separation. The line of sight velocities were compared for certain beam angle scenarios.
The process and results of the correlations and their sensitivity are presented, with implications as to the accuracy needed when looking to implement bi-static systems, using more than one system to scan the same volume of space.
LanguageEnglish
Publication statusPublished - 10 Mar 2014
EventEWEA 2014 Annual Wind Energy Event - Barcelona, Spain
Duration: 10 Mar 201413 Mar 2014

Conference

ConferenceEWEA 2014 Annual Wind Energy Event
CountrySpain
CityBarcelona
Period10/03/1413/03/14

Fingerprint

Synchronization
Scanning
Offshore wind farms
Carbon

Keywords

  • scanning
  • LIDAR
  • wind

Cite this

Cassola, A., Stickland, M., Oldroyd, A., Gribben, B., Adams, N., & Gellatly, B. (2014). Sensitivity of space and time on scanning LiDAR data correlation and the implications on synchronisation of bi-static systems. Paper presented at EWEA 2014 Annual Wind Energy Event, Barcelona, Spain.
Cassola, Alexander ; Stickland, Matthew ; Oldroyd, Andrew ; Gribben, Brian ; Adams, Neil ; Gellatly, Breanne. / Sensitivity of space and time on scanning LiDAR data correlation and the implications on synchronisation of bi-static systems. Paper presented at EWEA 2014 Annual Wind Energy Event, Barcelona, Spain.
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Cassola, A, Stickland, M, Oldroyd, A, Gribben, B, Adams, N & Gellatly, B 2014, 'Sensitivity of space and time on scanning LiDAR data correlation and the implications on synchronisation of bi-static systems' Paper presented at EWEA 2014 Annual Wind Energy Event, Barcelona, Spain, 10/03/14 - 13/03/14, .

Sensitivity of space and time on scanning LiDAR data correlation and the implications on synchronisation of bi-static systems. / Cassola, Alexander; Stickland, Matthew; Oldroyd, Andrew; Gribben, Brian; Adams, Neil; Gellatly, Breanne.

2014. Paper presented at EWEA 2014 Annual Wind Energy Event, Barcelona, Spain.

Research output: Contribution to conferencePaper

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T1 - Sensitivity of space and time on scanning LiDAR data correlation and the implications on synchronisation of bi-static systems

AU - Cassola, Alexander

AU - Stickland, Matthew

AU - Oldroyd, Andrew

AU - Gribben, Brian

AU - Adams, Neil

AU - Gellatly, Breanne

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Y1 - 2014/3/10

N2 - When possible, running a cross comparison between two or more instruments that are out on the field is an important check for accuracy, consistency and reliability of the instruments in question. As part of the Carbon Trust OWA Offshore wakes campaign, two scanning LiDAR systems were deployed to give near full coverage of the host offshore wind farm.As part of the programme, periodic checks were performed to give confidence on how each system was performing, and that system output remained consistent. The LiDARs were several kilometres apart and the scan patterns were not synchronised temporally or spatially. It was, however, possible to pick out data points from the two LiDAR data sets that could be used for such a cross comparison based on their spatial and temporal separation. The line of sight velocities were compared for certain beam angle scenarios.The process and results of the correlations and their sensitivity are presented, with implications as to the accuracy needed when looking to implement bi-static systems, using more than one system to scan the same volume of space.

AB - When possible, running a cross comparison between two or more instruments that are out on the field is an important check for accuracy, consistency and reliability of the instruments in question. As part of the Carbon Trust OWA Offshore wakes campaign, two scanning LiDAR systems were deployed to give near full coverage of the host offshore wind farm.As part of the programme, periodic checks were performed to give confidence on how each system was performing, and that system output remained consistent. The LiDARs were several kilometres apart and the scan patterns were not synchronised temporally or spatially. It was, however, possible to pick out data points from the two LiDAR data sets that could be used for such a cross comparison based on their spatial and temporal separation. The line of sight velocities were compared for certain beam angle scenarios.The process and results of the correlations and their sensitivity are presented, with implications as to the accuracy needed when looking to implement bi-static systems, using more than one system to scan the same volume of space.

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KW - LIDAR

KW - wind

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M3 - Paper

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Cassola A, Stickland M, Oldroyd A, Gribben B, Adams N, Gellatly B. Sensitivity of space and time on scanning LiDAR data correlation and the implications on synchronisation of bi-static systems. 2014. Paper presented at EWEA 2014 Annual Wind Energy Event, Barcelona, Spain.