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Real-time laser Doppler anemometry for optical air data applications in low aerosol environments

Kliebisch, Oliver and Mahnke, Peter (2020) Real-time laser Doppler anemometry for optical air data applications in low aerosol environments. Review of Scientific Instruments, 91 (9), 095106. American Institute of Physics (AIP). doi: 10.1063/5.0014389. ISSN 0034-6748.

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Official URL: http://dx.doi.org/10.1063/5.0014389


Laser Doppler anemometry (LDA), sometimes also referred to as cw Doppler lidar, is a promising optical technique for the measurement of primary flight data such as true air speed, angle of attack, and angle of sideslip. Multiple flight campaigns have shown the potential of this technique for future air data systems. However, LDA remains challenging in low aerosol environments at cruise altitude, and the high raw-data bandwidth of LDA sensors impedes real-time operation. In this work, we present a real-time preprocessing scheme, which is optimized to handle the signal structure of single-particle scattering events. We discuss how this scheme is implemented on system-on-chip field-programmable-gate-array hardware and how it is used with a four channel laser Doppler anemometer.

Item URL in elib:https://elib.dlr.de/137062/
Document Type:Article
Title:Real-time laser Doppler anemometry for optical air data applications in low aerosol environments
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Kliebisch, Oliveroliver.kliebisch (at) dlr.dehttps://orcid.org/0000-0003-0817-8914
Mahnke, Peterpeter.mahnke (at) dlr.deUNSPECIFIED
Date:9 September 2020
Journal or Publication Title:Review of Scientific Instruments
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In ISI Web of Science:Yes
DOI :10.1063/5.0014389
Page Range:095106
Publisher:American Institute of Physics (AIP)
Keywords:laser Doppler anemometer, FPGA, Fourier analysis, scattering
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:fixed-wing aircraft
DLR - Research area:Aeronautics
DLR - Program:L AR - Aircraft Research
DLR - Research theme (Project):L - Laser Research and Technology (old)
Location: Stuttgart
Institutes and Institutions:Institute of Technical Physics
Deposited By: Kliebisch, Oliver
Deposited On:18 Nov 2020 09:41
Last Modified:18 Nov 2020 09:41

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