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dc.contributor.author
Diamantidis, Periklis-Konstantinos
dc.contributor.author
Klopotek, Grzegorz
dc.contributor.author
Haas, Rüdiger
dc.contributor.author
Johansson, Jan
dc.date.accessioned
2022-03-18T09:31:46Z
dc.date.available
2022-01-14T09:13:02Z
dc.date.available
2022-03-18T09:31:46Z
dc.date.issued
2021-04
dc.identifier.other
10.5194/egusphere-egu21-14343
en_US
dc.identifier.uri
http://hdl.handle.net/20.500.11850/525589
dc.identifier.doi
10.3929/ethz-b-000525589
dc.description.abstract
The dawn of Beidou and Galileo as operational Global Navigation Satellite Systems (GNSS) alongside Global Positioning System (GPS) and GLONASS as well as new features that are now present in all GNSS, such as a triple-frequency setup, create new possibilities concerning improved estimation and assessment of various geodetic products. In particular, the multi-GNSS analysis gives an access to a better sky coverage allowing for improved estimation of zenith wet delays (ZWD) and tropospheric gradients (GRD), and can be used to determine integer phase ambiguities. The Multi-GNSS Experiment (MGEX), as realised by the International GNSS Service (IGS), provides orbit, clock and observation data for all operational GNSS. To take advantage of the new capabilities that these constellations bring, space-geodetic software packages have been retrofitted with Multi-GNSS-compliant modules. Based on this, two software packages, namely GipsyX and c5++, are utilised by way of the static Precise Point Positioning (PPP) approach using six months of data, and an assessment of the derived geodetic products is carried out for several GNSS receivers located at the Onsala core site. More specifically, we perform both single-constellation and multi-GNSS data analysis using Kalman filter and least-squares methods and assess the quality of the derived station positions, ZWD and GRD. A combined solution using all GNSS constellations is carried out and the improvement with respect to station position repeatabilities is assessed for each station. Results from the two software packages are compared with respect to each other and the discrepancies are discussed. Inter-system biases, which homogenise the different time scale that each GNSS operates in, and are necessary for the multi-GNSS combination, are estimated and presented. Finally, the applied inter-system weighting and its impact on the derived geodetic products are discussed.
en_US
dc.format
application/pdf
en_US
dc.language.iso
en
en_US
dc.publisher
Copernicus
en_US
dc.rights.uri
http://creativecommons.org/licenses/by/4.0/
dc.subject
GNSS
en_US
dc.subject
Multi-GNSS processing
en_US
dc.title
Assessment of geodetic products from Multi-GNSS analyses at the Onsala site
en_US
dc.type
Other Conference Item
dc.rights.license
Creative Commons Attribution 4.0 International
ethz.journal.title
EGUsphere
ethz.pages.start
EGU21-14343
en_US
ethz.size
1 p.
en_US
ethz.version.deposit
publishedVersion
en_US
ethz.event
EGU General Assembly 2021
en_US
ethz.event.location
Online
en_US
ethz.event.date
April 19-30, 2021
en_US
ethz.notes
vPICO presentation held on April 28, 2021.
en_US
ethz.publication.place
Göttingen
en_US
ethz.publication.status
published
en_US
ethz.leitzahl
ETH Zürich::00002 - ETH Zürich::00012 - Lehre und Forschung::00007 - Departemente::02115 - Dep. Bau, Umwelt und Geomatik / Dep. of Civil, Env. and Geomatic Eng.::02647 - Inst. f. Geodäsie und Photogrammetrie / Institute of Geodesy and Photogrammetry::09707 - Soja, Benedikt / Soja, Benedikt
en_US
ethz.leitzahl.certified
ETH Zürich::00002 - ETH Zürich::00012 - Lehre und Forschung::00007 - Departemente::02115 - Dep. Bau, Umwelt und Geomatik / Dep. of Civil, Env. and Geomatic Eng.::02647 - Inst. f. Geodäsie und Photogrammetrie / Institute of Geodesy and Photogrammetry::09707 - Soja, Benedikt / Soja, Benedikt
en_US
ethz.tag
c5++
en_US
ethz.tag
GipsyX
en_US
ethz.tag
GNSS
en_US
ethz.date.deposited
2022-01-14T09:13:08Z
ethz.source
FORM
ethz.eth
yes
en_US
ethz.availability
Open access
en_US
ethz.rosetta.installDate
2022-03-18T09:31:53Z
ethz.rosetta.lastUpdated
2022-03-29T20:41:32Z
ethz.rosetta.versionExported
true
ethz.COinS
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