GLONASS FDMA data for RTK positioning: a five-system analysis

dc.contributor.authorBrack, Andreas
dc.contributor.authorMännel, Benjamin
dc.contributor.authorSchuh, Harald
dc.date.accessioned2020-12-09T08:55:16Z
dc.date.available2020-12-09T08:55:16Z
dc.date.issued2020-10-24
dc.description.abstractThe use of the GLONASS legacy signals for real-time kinematic positioning is considered. Due to the FDMA multiplexing scheme, the conventional CDMA observation model has to be modified to restore the integer estimability of the ambiguities. This modification has a strong impact on positioning capabilities. In particular, the ambiguity resolution performance of this model is clearly weaker than for CDMA systems, so that fast and reliable full ambiguity resolution is usually not feasible for standalone GLONASS, and adding GLONASS data in a multi-GNSS approach can reduce the ambiguity resolution performance of the combined model. Partial ambiguity resolution was demonstrated to be a suitable tool to overcome this weakness (Teunissen in GPS Solut 23(4):100, 2019). We provide an exhaustive formal analysis of the positioning precision and ambiguity resolution capabilities for short, medium, and long baselines in a multi-GNSS environment with GPS, Galileo, BeiDou, QZSS, and GLONASS. Simulations are used to show that with a difference test-based partial ambiguity resolution method, adding GLONASS data improves the positioning performance in all considered cases. Real data from different baselines are used to verify these findings. When using all five available systems, instantaneous centimeter-level positioning is possible on an 88.5 km baseline with the ionosphere weighted model, and on average, only 3.27 epochs are required for a long baseline with the ionosphere float model, thereby enabling near instantaneous solutions.en
dc.identifier.eissn1521-1886
dc.identifier.issn1080-5370
dc.identifier.urihttps://depositonce.tu-berlin.de/handle/11303/12154
dc.identifier.urihttp://dx.doi.org/10.14279/depositonce-11028
dc.language.isoenen
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/en
dc.subject.ddc550 Geowissenschaftende
dc.subject.otherRTKen
dc.subject.otherGLONASS FDMAen
dc.subject.otherinteger ambiguity resolutionen
dc.subject.otherpartial fixingen
dc.subject.otherdifference testen
dc.subject.otherbest integer equivariant estimationen
dc.subject.othermulti-GNSSen
dc.titleGLONASS FDMA data for RTK positioning: a five-system analysisen
dc.typeArticleen
dc.type.versionpublishedVersionen
dcterms.bibliographicCitation.articlenumber9en
dcterms.bibliographicCitation.doi10.1007/s10291-020-01043-5en
dcterms.bibliographicCitation.journaltitleGPS Solutionsen
dcterms.bibliographicCitation.originalpublishernameSpringeren
dcterms.bibliographicCitation.originalpublisherplaceHeidelbergen
dcterms.bibliographicCitation.volume25en
tub.accessrights.dnbfreeen
tub.affiliationFak. 6 Planen Bauen Umwelt>Inst. Geodäsie und Geoinformationstechnik>FG Satellitengeodäsiede
tub.affiliation.facultyFak. 6 Planen Bauen Umweltde
tub.affiliation.groupFG Satellitengeodäsiede
tub.affiliation.instituteInst. Geodäsie und Geoinformationstechnikde
tub.publisher.universityorinstitutionTechnische Universität Berlinen
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