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Recovering undifferenced GNSS observations from double differences - use and limits

Schön, Steffen

Abstract (englisch):

Double differences (DD) of GNSS phase observations are often used to eliminate or largely reduce systematic effects in the observations, especially the satellite and receiver clock errors. However, during this operation not only errors are eliminated but also information of four different lines-of-sights is combined into one DD observation. Consequently, specific effects of interest like e. g. multipath signatures or tropospheric slant delay variations can be hardly attributed to a specific line-of-sight. To overcome these problems, Alber et al. (2000) proposed a strategy to recover undifferenced observations (ZD) from DD which is now widely used in geodesy and GPS data assimilation in meteorology. In this paper, the explicit analytical solution of the strategy proposed by Alber et al. (2000) will be given. The findings describe directly the repartition of the information contained in the DD on the recovered ZD and the difference between the original ZD and the recovered one. Using simulated and real data the benefits and limitations of the strategy are discussed. It is shown that individual signatures cannot be completely recovered. ... mehr

Verlagsausgabe §
DOI: 10.5445/IR/1000080246
Veröffentlicht am 23.10.2018
Cover der Publikation
Zugehörige Institution(en) am KIT Geodätisches Institut (GIK)
KIT-Zentrum Klima und Umwelt (ZKU)
Publikationstyp Buchaufsatz
Publikationsjahr 2018
Sprache Englisch
Identifikator ISBN: 978-3-7315-0777-2
ISSN: 1612-9733
KITopen-ID: 1000080246
Erschienen in (Schw)Ehre, wem (Schw)Ehre gebührt : Festschrift zur Verabschiedung von Prof. Dr.-Ing. Dr. h.c. Bernhard Heck. Hrsg.: A. Heck
Verlag KIT Scientific Publishing
Seiten 245-253
Serie Schriftenreihe des Studiengangs Geodäsie und Geoinformatik / Karlsruher Institut für Technologie, Studiengang Geodäsie und Geoinformatik ; 2018,1
Bemerkung zur Veröffentlichung Verlagsausgabe zusätzlich registriert unter DOI: 10.5445/KSP/1000080246
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