New Space Domain Processing Technique for Pulsed Laser Velocimetry

New Space Domain Processing Technique for Pulsed Laser Velocimetry

A new and fast data processing technique for pulsed-laser-velocimetry data is described. A simplified cross correlation algorithm was developed which uses the time history information of the recorded particle images. It is shown that, the use of the particle time history information (which can be ob...

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Veröffentlicht in:Applied Optics 1990-08, Vol.29 (23), p.3399-3417
Hauptverfasser: Wernet, Mark P., Edwards, Robert V.
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Sprache:eng
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Instrumentation And Photography
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container_issue 23
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container_title Applied Optics
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creator Wernet, Mark P.
Edwards, Robert V.
description A new and fast data processing technique for pulsed-laser-velocimetry data is described. A simplified cross correlation algorithm was developed which uses the time history information of the recorded particle images. It is shown that, the use of the particle time history information (which can be obtained using an electronic camera to record the particle exposures) facilitates high speed processing and unambiguous velocity vector information. It was found that a complex convection vortex flow can be recorded and completely processed in less than 2 min on a personal computer, producing a two-dimensional map of the flow field containing over 300 velocity vectors.
doi_str_mv 10.1364/AO.29.003399
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source NASA Technical Reports Server; Alma/SFX Local Collection; Optica Publishing Group Journals
subjects Instrumentation And Photography
title New Space Domain Processing Technique for Pulsed Laser Velocimetry
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