Two-epoch centimeter-level PPP-RTK without external atmospheric corrections using best integer-equivariant estimation
dc.contributor.author | Brack, Andreas | |
dc.contributor.author | Männel, Benjamin | |
dc.contributor.author | Schuh , Harald | |
dc.date.accessioned | 2023-02-01T15:28:29Z | |
dc.date.available | 2023-02-01T15:28:29Z | |
dc.date.issued | 2022-10-27 | |
dc.description.abstract | Ambiguity resolution enabled precise point positioning (PPP-AR or PPP-RTK) without atmospheric corrections requires the user to estimate tropospheric and ionospheric delay parameters. The presence of the unconstrained ionosphere parameters impedes fast and reliable ambiguity resolution, so a time-to-first-fix of around 30 min for GPS-only solutions is generally reported, which can, to some extent, be reduced when combining multiple GNSS. In this contribution, we investigate the capabilities of almost instantaneous PPP-RTK, using only a few observation epochs at a sampling interval of 30 s, with the ionosphere-float model. The considered key elements are (a) the MSE-optimal best integer-equivariant estimator, (b) a combination of dual-frequency GPS, Galileo, BDS, and QZSS, (c) an area with good visibility of BDS and QZSS, and (d) a proper weighting of the PPP-RTK corrections. We provide a formal and simulation-based analysis of kinematic and static PPP-RTK with perfect, i.e., deterministic, clock and bias corrections as well as corrections computed from only a single reference station. The results indicate that, on average, one can expect centimeter-level positioning results with just slightly more than two epochs already with single-station corrections. This is confirmed with real four-system GNSS data, for which the availability of two-epoch centimeter-level horizontal positioning results is 99.7% during an exemplary day. | en |
dc.identifier.eissn | 1521-1886 | |
dc.identifier.issn | 1080-5370 | |
dc.identifier.uri | https://depositonce.tu-berlin.de/handle/11303/18130 | |
dc.identifier.uri | https://doi.org/10.14279/depositonce-16923 | |
dc.language.iso | en | |
dc.rights.uri | https://creativecommons.org/licenses/by/4.0/ | |
dc.subject.ddc | 550 Geowissenschaften | de |
dc.subject.other | multi-GNSS | en |
dc.subject.other | precise point positioning | en |
dc.subject.other | PPP | en |
dc.subject.other | integer ambiguity resolution | en |
dc.subject.other | best integer-equivariant estimation | en |
dc.subject.other | PPP-AR | en |
dc.subject.other | PPP-RTK | en |
dc.title | Two-epoch centimeter-level PPP-RTK without external atmospheric corrections using best integer-equivariant estimation | en |
dc.type | Article | |
dc.type.version | publishedVersion | |
dcterms.bibliographicCitation.articlenumber | 12 | |
dcterms.bibliographicCitation.doi | 10.1007/s10291-022-01341-0 | |
dcterms.bibliographicCitation.journaltitle | GPS Solutions | |
dcterms.bibliographicCitation.originalpublishername | Springer Nature | |
dcterms.bibliographicCitation.originalpublisherplace | Heidelberg | |
dcterms.bibliographicCitation.volume | 27 | |
dcterms.rightsHolder.reference | Creative-Commons-Lizenz | |
tub.accessrights.dnb | free | |
tub.affiliation | Fak. 6 Planen Bauen Umwelt::Inst. Geodäsie und Geoinformationstechnik::FG Satellitengeodäsie | |
tub.publisher.universityorinstitution | Technische Universität Berlin |