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Evaluation of GPS L5 and Galileo E1 and E5a Performance for Future Multi Frequency and Multi Constellation GBAS

Circiu, Mihaela-Simona and Felux, Michael and Thoelert, Steffen and Antreich, Felix and Vergara, Mariano and Sgammini, Mateo and Enneking, Christoph and Pullen, Sam (2015) Evaluation of GPS L5 and Galileo E1 and E5a Performance for Future Multi Frequency and Multi Constellation GBAS. International Technical Meeting ION GNSS, Dana Point, CA, US.

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In this paper, we show a performance analysis of different signals from the new Galileo satellites in the E1 and E5a frequency bands as well as GPS L5 signals in DLR’s experimental Ground Based Augmentation System (GBAS). We show results of noise and multipath evaluations of the available Galileo satellites and compare their performance to the currently used GPS L1 and the new GPS L5 signals which were presented in a recent paper. The results show that the raw noise and multipath level of Galileo signals is smaller than of GPS. Even after smoothing, Galileo signals perform somewhat better than GPS and are less sensitive to the smoothing time constant. Another issue to be considered in a future multi frequency system is inter-frequency bias. These biases differ between satellites and depend on satellite and receiver hardware, but they can be determined a priori. With known receiver and antenna configurations, it is possible to correct for these biases and avoid errors introduced by different hardware in the airborne receiver and GBAS ground system. A residual uncertainty associated with the bias correction has to be taken into account. This can be modelled as part of σ_(pr\_gnd).

Item URL in elib:https://elib.dlr.de/96242/
Document Type:Conference or Workshop Item (Speech)
Title:Evaluation of GPS L5 and Galileo E1 and E5a Performance for Future Multi Frequency and Multi Constellation GBAS
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Circiu, Mihaela-SimonaMihaela-Simona.Circiu (at) dlr.deUNSPECIFIED
Felux, Michaelmichael.felux (at) dlr.deUNSPECIFIED
Thoelert, Steffensteffen.thoelert (at) dlr.deUNSPECIFIED
Antreich, Felixfelix.antreich (at) dlr.deUNSPECIFIED
Vergara, Marianomariano.vergara (at) dlr.deUNSPECIFIED
Sgammini, MateoMatteo.Sgammini (at) dlr.deUNSPECIFIED
Enneking, Christophchristoph.enneking (at) dlr.deUNSPECIFIED
Pullen, Samspullen (at) stanford.eduUNSPECIFIED
Date:January 2015
Refereed publication:No
Open Access:Yes
Gold Open Access:No
In ISI Web of Science:No
Keywords:multi-frequency multi-constellation GBAS, inter-frequency bias, multipath and noise, Galileo signals, GPS Block IIf
Event Title:International Technical Meeting ION GNSS
Event Location:Dana Point, CA, US
Event Type:international Conference
Organizer:Institute of Navigation
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 > Navigation
Deposited By: Circiu, Mihaela-Simona
Deposited On:18 May 2015 09:12
Last Modified:31 Jul 2019 19:53

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