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Ionospheric Correction for GPS Tracking of LEO Satellites

Montenbruck, O. and Gill, E. (2002) Ionospheric Correction for GPS Tracking of LEO Satellites. The Journal of Navigation, 55, pp. 293-304. DOI: 10.1017/S0373463302001789.

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This paper describes an ionospheric correction technique for single frequency GPS measurements from satellites in low Earth orbit. The fractional total electron content (TEC) above the receiver altitude is obtained from global TEC maps of the International GPS Service network and an altitude dependent scale factor. By choosing a suitable eåective height of the residual ionosphere, the resulting path delay for positive elevations is then computed from a thin layer approximation. The scale factor can be predicted from the assumption of a Chapman proÆle for the altitude variation of the electron density or adjusted as a free parameter in the processing of an extended set of single frequency measurements. The suitability of the proposed model is assessed by comparison with Øight data from the Champ satellite that orbits the Earth at an altitude of 450 km. For the given test case, a 90% correction of the ionospheric error is achieved in a reduced dynamic orbit determination based on single frequency C}A-code measurements.

Document Type:Article
Additional Information: LIDO-Berichtsjahr=2003,
Title:Ionospheric Correction for GPS Tracking of LEO Satellites
AuthorsInstitution or Email of Authors
Montenbruck, O.UNSPECIFIED
Journal or Publication Title:The Journal of Navigation
Refereed publication:Yes
In ISI Web of Science:Yes
Page Range:pp. 293-304
Keywords:Space Tracking, GPS
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Space (old)
HGF - Program Themes:W EO - Erdbeobachtung
DLR - Research area:Space
DLR - Program:W EO - Erdbeobachtung
DLR - Research theme (Project):UNSPECIFIED
Location: Oberpfaffenhofen
Institutes and Institutions:Space Operations and Astronaut Training > Hauptabteilung Raumflugbetrieb und Astronautenausbildung
Deposited By: Karin Klier
Deposited On:16 Sep 2005
Last Modified:14 Jan 2010 17:24

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