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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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.
|Title:||Kinematic GPS positioning of LEO satellites using ionosphere-free single frequency measurements|
|Date:||13 December 2002|
|Journal or Publication Title:||Aerospace Science and Technology|
|In ISI Web of Science:||Yes|
|Page Range:||pp. 396-405|
|Keywords:||GPS, GRAPHIC Daten, Ionosphäre, LEO Satelliten, CHAMP, GPS, GRAPHIC data, Ionosphere, LEO satellites|
|HGF - Research field:||Aeronautics, Space and Transport|
|HGF - Program:||Space|
|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)|
|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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