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Differential Code Bias Estimation using Multi-GNSS Observations and Global Ionosphere Map

Montenbruck, Oliver and Hauschild, André and Steigenberger, Peter (2014) Differential Code Bias Estimation using Multi-GNSS Observations and Global Ionosphere Map. ION-ITM-2014, 26.-28. Jan 2014, San Diego.

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Abstract

Measurements of Global Navigation Satellite System (GNSS) receivers are affected by systematic offsets re- lated to group and phase delays of the signal generation and processing chain. The resulting code and phase biases depend on the transmission frequency and the employed signal modulation. Within this study differential code biases (DCBs) of legacy an d modernized GNSS signals are derived from pseudodrange observations of a global multi-GNSS receiver network. Global ionosphere maps (GIMs) are employed for th e correction of ionospheric path delays. Satellite and receiver-specific contributions are separated based on the a ssumption of additive biases and a zero-mean condition for the satellite biases within a constellation. Based on 6 months of data collected within the Multi-GNSS Experiment (M GEX) of the International GNSS Service (IGS), DCBs for the publicly available signals of GPS, Galileo and BeiDou have been deter- mined. The quality of the resulting DCB estimates is as- sessed and compared against group delay parameters transmitted by the GNSS providers as part of the broad- cast ephemeris data.

Item URL in elib:https://elib.dlr.de/87753/
Document Type:Conference or Workshop Item (Speech)
Title:Differential Code Bias Estimation using Multi-GNSS Observations and Global Ionosphere Map
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Montenbruck, OliverDLRUNSPECIFIED
Hauschild, AndréDLRUNSPECIFIED
Steigenberger, PeterTUMUNSPECIFIED
Date:2014
Refereed publication:No
Open Access:Yes
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Page Range:pp. 802-812
Status:Published
Keywords:DCB, Bias, GNSS, Galileo, BeiDou
Event Title:ION-ITM-2014
Event Location:San Diego
Event Type:international Conference
Event Dates:26.-28. Jan 2014
Organizer:ION
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Space Technology
DLR - Research area:Raumfahrt
DLR - Program:R SY - Technik für Raumfahrtsysteme
DLR - Research theme (Project):R - Vorhaben Infrastruktur und Unterstützung für Raumflugbetrieb
Location: Oberpfaffenhofen
Institutes and Institutions:Space Operations and Astronaut Training
Deposited By: Montenbruck, Dr.rer.nat.hab. Oliver
Deposited On:17 Jan 2014 15:00
Last Modified:31 Jul 2019 19:44

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