Performance Comparison of Semi-Codeless GPS Receivers for LEO Satellites
Montenbruck, Oliver and Garcia-Fernandez, Miquel and Williams, Jacob (2005) Performance Comparison of Semi-Codeless GPS Receivers for LEO Satellites. GPS Solutions, 10 (4), pp. 249-261. Springer Verlag. DOI: 10.1007/s10291-006-0025-9.
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This report provides a detailed performance analysis of three semi-codeless dual-frequency GPS receivers for use in low Earth orbit (LEO). The test set comprises the IGOR receiver, which represents a follow-on of the flight-proven BlackJack receiver, as well as two geodetic receivers (NovAtel OEM4-G2 and Septentrio PolaRx2), which are entirely based on commercial-off-the-shelf technology (COTS). All three receivers are considered for upcoming flight projects or experiments and have undergone at least a preliminary environmental qualification program. Using extensive signal simulator tests, the cold start signal acquisition, tracking sensitivity, differential code biases, raw measurement accuracy and navigation accuracy of each receiver have been assessed. All tests are based on a common scenario that is representative of an actual space mission and provides a realistic simulation of the signal dynamics and quality on a scientific LEO satellite. Compared to the other receivers, the IGOR instrument exhibits a superior tracking sensitivity and is thus best suited for occultation measurements with low tangent point altitudes. The OEM4-G2 and PolaRx2 receivers are likewise shown to properly track dual-frequency GPS signals and normal signal levels and to provide accurate code and carrier phase measurements. Given their limited resource requirements, these receivers appear well suited for precise orbit determination applications and ionospheric sounding onboard of micro-satellites with tight mission budgets.
|Title:||Performance Comparison of Semi-Codeless GPS Receivers for LEO Satellites|
|Date:||09 November 2005|
|Journal or Publication Title:||GPS Solutions|
|In ISI Web of Science:||Yes|
|Page Range:||pp. 249-261|
|Keywords:||Spaceborne GPS, semi-codeless tracking, IGOR, OEM4-G2, PolaRx2, BlackJack|
|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:||22 Jan 2007|
|Last Modified:||14 Jan 2010 20:18|
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