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Impact of Satellite Biases on the Position in Differential MFMC Applications

Thoelert, Steffen and Circiu, Mihaela-Simona and Meurer, Michael (2020) Impact of Satellite Biases on the Position in Differential MFMC Applications. In: Institute of Navigation International Technical Meeting 2020, ITM 2020. International Technical Meeting of the Institute of Navigation, 2020-01-21 - 2020-01-24, San Diego, USA. doi: 10.33012/2020.17138. ISBN 978-093640624-4.

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Global navigation satellite systems (GNSS) are used in many applications and have been part of our daily life since years. In this work error contributions based on the satellite hardware have been investigated and their impact on safety critical applications has been assessed. The paper starts with an introduction of the measurement facility and analysis of the satellite payload imperfections as well as the impact of signal deformations on the pseudo-range for different GPS (Block IIF) and Galileo satellites. The analysis is based on in-phase (I) and quadrature-phase (Q) data captured with a high gain antenna, which offers almost interference and multipath-free signal reception. Using these measurements, the biases for different receiver parameters in terms of correlator spacing and bandwidth are derived. The differential code biases are estimated using a fixed configuration for the ground station, e.g. 0.1 chips for L1 and 1 chip for L5 as specified in the current DFMC MOPS (EUROCAE WG62) and 24 MHz (double-sided) bandwidth. For the user receiver, we extend the receiver parameters to the following design space: 0.01 - 1 chips correlator spacing and 2 – 50 MHz bandwidth for L1, 0.01 – 0.5 chips correlator spacing and 4 – 50 MHz bandwidth for E1, and 0.01 - 1 chips correlator spacing and 10 – 50 MHz bandwidth for and L5/E5a signals. In addition, an analysis of the magnitude of the differential satellite code biases and position errors within the design space defined for GPS L1 (RTCA DO-229E), and within the DFMC design space proposed in the DFMC SBAS MOPS (EUROCAE WG62) is shown. Based on the derived satellite differential code biases, the impact on the position solution for one location and different geometries is presented.

Item URL in elib:https://elib.dlr.de/134480/
Document Type:Conference or Workshop Item (Speech)
Title:Impact of Satellite Biases on the Position in Differential MFMC Applications
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Thoelert, SteffenIKNhttps://orcid.org/0000-0003-4653-318XUNSPECIFIED
Circiu, Mihaela-SimonaUNSPECIFIEDhttps://orcid.org/0000-0003-4430-0526UNSPECIFIED
Date:January 2020
Journal or Publication Title:Institute of Navigation International Technical Meeting 2020, ITM 2020
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In ISI Web of Science:Yes
Keywords:Multi-frequency, multi-constellation, DFMC, GNSS, GPS, Galileo, differential bias, code bias, receiver parameter, satellite bias
Event Title:International Technical Meeting of the Institute of Navigation
Event Location:San Diego, USA
Event Type:international Conference
Event Start Date:21 January 2020
Event End Date:24 January 2020
Organizer:Institute of Navigation
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Communication and Navigation
DLR - Research area:Raumfahrt
DLR - Program:R KN - Kommunikation und Navigation
DLR - Research theme (Project):R - Vorhaben GNSS2/Neue Dienste und Produkte (old), R - Project Navigation 4.0 (old)
Location: Oberpfaffenhofen
Institutes and Institutions:Institute of Communication and Navigation > Navigation
Institute of Communication and Navigation
Deposited By: Thölert, Steffen
Deposited On:07 Apr 2020 15:59
Last Modified:24 Apr 2024 20:37

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