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Kinematic GPS positioning of LEO satellites using ionosphere-free single frequency measurements

Montenbruck, Oliver (2002) Kinematic GPS positioning of LEO satellites using ionosphere-free single frequency measurements. Aerospace Science and Technology, 7 (5), pp. 396-405. Elsevier. DOI: 10.1016/S1270-9638(03)00034-8.

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Abstract

A method for kinematic point positioning of satellites in low Earth orbit (LEO) based on single frequency GPS measurements is discussed. It makes use of a ionosphere-free combination (GRAPHIC) of C/A code and L1 phase observations and can thus be employed with the majority of non-geodetic spaceborne GPS receivers. Other than dynamical Kalman filter schemes estimating position, velocity and clock parameters along with a set of biases for all tracked channels, a purely kinematic approach is examined in this study. It comprises a global adjustment of positions, clock offsets and pass-by-pass biases from the observations. As such, it is free of any assumptions on the motion of the user vehicle and can be applied for free-flying as well as maneuvering spacecraft. Sample results are shown for LEO GPS data collected with a low-cost single frequency receiver in a signal simulator test bed as well as flight data from the CHAMP mission. In both cases, a purely kinematic 3D position accuracy of 1–1.5 m could be demonstrated in comparison with concise reference trajectories.

Document Type:Article
Title:Kinematic GPS positioning of LEO satellites using ionosphere-free single frequency measurements
Authors:
AuthorsInstitution or Email of Authors
Montenbruck, OliverUNSPECIFIED
Date:13 December 2002
Journal or Publication Title:Aerospace Science and Technology
Refereed publication:Yes
In ISI Web of Science:Yes
Volume:7
DOI:10.1016/S1270-9638(03)00034-8
Page Range:pp. 396-405
Publisher:Elsevier
Status:Published
Keywords:GPS, GRAPHIC Daten, Ionosphäre, LEO Satelliten, CHAMP, GPS, GRAPHIC data, Ionosphere, LEO satellites
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Space (old)
HGF - Program Themes:W SY - Technik für Raumfahrtsysteme
DLR - Research area:Space
DLR - Program:W SY - Technik für Raumfahrtsysteme
DLR - Research theme (Project):W -- no assignement (old)
Location: Oberpfaffenhofen
Institutes and Institutions:Space Operations and Astronaut Training
Deposited By: Dr.rer.nat.hab. Oliver Montenbruck
Deposited On:16 Jan 2006
Last Modified:14 Jan 2010 20:45

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