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A new approach for assessing tropospheric delay model performance for safety-of-life GNSS applications

Rózsa, Szabolcs

Abstract (englisch):

GNSS satellite signals suffer considerable delays while travelling through the troposphere. The delay caused, it can be separated into two different parts: the effect of gases in hydrostatic equilibrium and the effect of water vapour and condensed water present in the troposphere. In safety-of-life navigation applications of GNSS (e.g. positioning and navigation of aircrafts, autonomous vehicles, etc.) not only the accuracy of the positioning needs to be known,
but the integrity of the positioning service should be evaluated, too. The integrity information means that the maximum positioning error at an extremely rare probability level (approximately 10-7), called the protection level, must be determined. The widely adopted RTCA (Radio Technical Commission for Aeronautics) recommends the minimum operational performance standard (MOPS) for GNSS systems used in the aeronautics. According to this recommendation, the maximum total tropospheric delay error in the zenith direction is 0.12 m in terms of standard deviation. However, this model neglects both the geographical and seasonal variation of the accuracy performance of the tropospheric delay models. ... mehr

Verlagsausgabe §
DOI: 10.5445/IR/1000080241
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: 1000080241
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 229-236
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/1000080241
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