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Reality measure of the published GPS satellite ephemeris uncertainties
Shaheed Rajaee Teacher Training University, Iran.
Khaje Nasir Toosi University, Iran.
University of Gävle, Faculty of Engineering and Sustainable Development, Department of Computer and Geospatial Sciences, Geospatial Sciences.ORCID iD: 0000-0003-0910-0596
2022 (English)In: Journal of Spatial Science, ISSN 1449-8596, Vol. 67, no 2, p. 287-295Article in journal (Refereed) Published
Abstract [en]

The international GNSS service (IGS) started publishing the precise ephemeris files in the form of the standard products #3, version C (the sp3c files) in which the GPS satellite orbits and clocks and their uncertainties were available since 2004. Incorporating these uncertainties into the GPS observation equations results in a better stochastic model of the processing system. The reality of these uncertainties is questioned and studied in this paper. Precise point positioning (PPP) model, statistical tests and variance component estimation (VCE) techniques are employed for this study. The results confirm the efficiency of the proposed method in the assessment of reality of the published ephemeris uncertainties.

Place, publisher, year, edition, pages
Taylor & Francis Group, 2022. Vol. 67, no 2, p. 287-295
Keywords [en]
PPP, VCE, precise ephemeris, uncertainties
National Category
Earth and Related Environmental Sciences
Research subject
Sustainable Urban Development; Intelligent Industry
Identifiers
URN: urn:nbn:se:hig:diva-32221DOI: 10.1080/14498596.2020.1746702ISI: 000532108500001Scopus ID: 2-s2.0-85085043262OAI: oai:DiVA.org:hig-32221DiVA, id: diva2:1426262
Available from: 2020-04-24 Created: 2020-04-24 Last updated: 2022-10-27Bibliographically approved

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Bagherbandi, Mohammad

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CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard-cite-them-right
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • sv-SE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • de-DE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf