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Towards a Data Link for Unmanned Aviation: DLR Flight Measurement Campaign for C2 Data Link Development

Mielke, Daniel M. and Schneckenburger, Nicolas (2019) Towards a Data Link for Unmanned Aviation: DLR Flight Measurement Campaign for C2 Data Link Development. In: 2019 Integrated Communications, Navigation and Surveillance Conference, ICNS 2019. Integrated Communications Navigation and Surveillance (ICNS) 2019, 9.-11.04.2019, Herndon, VA, USA. ISBN 978-172811893-2 ISSN 2155-4943

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Abstract

Unmanned Aircraft (UA) are expected to play are more and more important role in global aviation during the next years. Besides the “smart” onboard control equipment leading to a certain amount of autonomy of the vehicle, a reliable data link (“Command and Control”, C2-link) is a key enabler for UA. This C2 link is used to exchange information between the UA and the remote pilot, for example positioning information, telemetry data or flight trajectories, respectively. None of the currently available aeronautical communication standards can fulfil the requirements for such a multi-user, multi-point datalink in terms of reliability, flexibility, data integrity, robustness and latency. The German Aerospace Center (DLR) initiated the “C-Band Digital Aeronautical Communication System” (CDACS) project to develop a C-band data link for this purpose. Part of this project is a flight measurement campaign to evaluate initial CDACS waveform designs, besides performing radio channel measurements of the terrestrial ground-air channel in C-band. Detailed knowledge on the behavior of the physical communication channel is crucial for an optimal design of a new communication system. Therefore, it is necessary to perform C-band channel measurements (aka “channel sounding”) and use the collected information to develop a channel model. In turn, this channel model can be used to optimize and evaluate the CDACS waveform design in simulations. The bandwidth used for the C-band channel measurements of this campaign was 50MHz whereas the CDACS waveforms tested spanned a bandwidth of ~1.5MHz. Multiple flight routes and maneuvers are chosen to collect information on different flight scenarios, e. g. take-off and landing, hard banking and en-route. This paper gives a detailed description on how this measurement campaign is setup, what kinds of signals for channel sounding and CDACS waveform testing are transmitted and how the post processing of the data is performed. It will also present an outlook on how the results of the campaign will be used to enhance the initial CDACS design.

Item URL in elib:https://elib.dlr.de/126460/
Document Type:Conference or Workshop Item (Speech)
Title:Towards a Data Link for Unmanned Aviation: DLR Flight Measurement Campaign for C2 Data Link Development
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Mielke, Daniel M.Daniel.Mielke (at) dlr.deUNSPECIFIED
Schneckenburger, Nicolasnicolas.schneckenburger (at) dlr.deUNSPECIFIED
Date:April 2019
Journal or Publication Title:2019 Integrated Communications, Navigation and Surveillance Conference, ICNS 2019
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:Yes
ISSN:2155-4943
ISBN:978-172811893-2
Status:Published
Keywords:Unmanned Aircraft, Measurement Campaign, Channel Sounding, C-Band
Event Title:Integrated Communications Navigation and Surveillance (ICNS) 2019
Event Location:Herndon, VA, USA
Event Type:international Conference
Event Dates:9.-11.04.2019
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:air traffic management and operations
DLR - Research area:Aeronautics
DLR - Program:L AO - Air Traffic Management and Operation
DLR - Research theme (Project):L - Communication, Navigation and Surveillance
Location: Oberpfaffenhofen
Institutes and Institutions:Institute of Communication and Navigation
Deposited By: Mielke, Daniel M.
Deposited On:24 Jun 2019 14:29
Last Modified:09 Sep 2019 11:05

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