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LDACS1 for an Alternate Positioning Navigation and Time Service

Belabbas, Boubeker and Felux, Michael and Meurer, Michael and Schneckenburger, Nicolas and Schnell, Michael (2011) LDACS1 for an Alternate Positioning Navigation and Time Service. In: Proceedings. GNSS Signals, 8.-9. Dez. 2011, Toulouse.

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Abstract

The future L-band Digital Aeronautical Communication System LDACS1 shows a very promising performance as a communication service. The system offers the possibility to also provide a navigation service with minimal adaptation. This paper investigates the level of performance achieved by an LDACS1 based navigation service. The results are outstanding and show that the stringent requirements of RNP0.1 can be reached in a large service volume. Two key parameters have a large impact on the performance of the navigation solution: the density of stations used as ranging sources and the time synchronization accuracy of these stations. The sensitivity of the performance to the second parameter has been investigated in this paper. It is shown that the time synchronization has significant impact on the achievable positioning performance only if the error is larger than 100 ns (one standard deviation). This is a very large synchronization error that can be easily reduced to 20 ns using existing low cost atomic clocks. The simulation results are very promising and open the doors to further investigations including flight experiments (planed in 2012), in particular the investigation of high performance and low cost system architectures that keep or improve the level of safety.

Document Type:Conference or Workshop Item (Speech, Paper)
Title:LDACS1 for an Alternate Positioning Navigation and Time Service
Authors:
AuthorsInstitution or Email of Authors
Belabbas, Boubekerboubeker.belabbas@dlr.de
Felux, Michaelmichael.felux@dlr.de
Meurer, Michaelmichael.meurer@dlr.de
Schneckenburger, Nicolasnicolas.schneckenburger@dlr.de
Schnell, Michaelmichael.schnell@dlr.de
Date:December 2011
Journal or Publication Title:Proceedings
Status:Published
Keywords:APNT, Alternate Positioning Navigation and Time, LDACS, L band Digital Communication System, RNP, Required Navigation Performance
Event Title:GNSS Signals
Event Location:Toulouse
Event Type:international Conference
Event Dates:8.-9. Dez. 2011
Organizer:Centre National d'Études Spatiales (CNES)
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:ATM and Operation
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: Boubeker Belabbas
Deposited On:25 Jan 2012 08:25
Last Modified:12 Dec 2013 21:35

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