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A study on the dependency of GNSS pseudorange biases on correlator spacing

Hauschild, André and Montenbruck, Oliver (2014) A study on the dependency of GNSS pseudorange biases on correlator spacing. GPS Solutions. Springer. doi: 10.1007/s10291-014-0426-0. ISSN 1080-5370.

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Official URL: http://www.springer.com/-/7/647a7324729c4dfd9d8ff3d0b16f2196


We provide a comprehensive overview of pseudorange biases and their dependency on receiver front-end bandwidth and correlator design. Differences in the chip shape distortions among GNSS satellites are the cause of individual pseudorange biases. The different biases must be corrected for in a number of applications, such as positioning with mixed signals or PPP with ambiguity resolution. Current state-of-the-art is to split the pseudorange bias into a receiver- and a satellite-dependent part. As soon as different receivers with different front-end bandwidths or correlator designs are involved, the satellite biases differ between the receivers and this separation is no longer practicable. A test with a special receiver firmware, which allows tracking a satellite with a range of different correlator spacings, has been conducted with live signals as well as a signal simulator. In addition, the variability of satellite biases is assessed through zero-baseline tests with different GNSS receivers using live satellite signals. The receivers are operated with different settings for multipath mitigation, and the changes in the satellite-dependent biases depending on the receivers’ configuration are observed.

Item URL in elib:https://elib.dlr.de/92478/
Document Type:Article
Title:A study on the dependency of GNSS pseudorange biases on correlator spacing
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Date:25 November 2014
Journal or Publication Title:GPS Solutions
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In ISI Web of Science:Yes
DOI :10.1007/s10291-014-0426-0
Keywords:Signal biases, GNSS, Zero baseline, Multipath mitigation, Signal simulator, Chip shape distortions
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Space System Technology
DLR - Research area:Raumfahrt
DLR - Program:R SY - Space System Technology
DLR - Research theme (Project):R - Vorhaben Infrastruktur und Unterstützung für Raumflugbetrieb (old)
Location: Oberpfaffenhofen
Institutes and Institutions:Space Operations and Astronaut Training > Space Flight Technology
Deposited By: Hauschild, André
Deposited On:27 Nov 2014 10:16
Last Modified:27 Nov 2014 10:16

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