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Performance Comparison of Semi-Codeless GPS Receivers for LEO Satellites

Montenbruck, Oliver und Garcia-Fernandez, Miquel und Williams, Jacob (2005) Performance Comparison of Semi-Codeless GPS Receivers for LEO Satellites. GPS Solutions, 10 (4), Seiten 249-261. Springer Verlag. DOI: 10.1007/s10291-006-0025-9.

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Kurzfassung

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.

Dokumentart:Zeitschriftenbeitrag
Titel:Performance Comparison of Semi-Codeless GPS Receivers for LEO Satellites
Autoren:
AutorenInstitution oder E-Mail-Adresse der Autoren
Montenbruck, OliverNICHT SPEZIFIZIERT
Garcia-Fernandez, MiquelNICHT SPEZIFIZIERT
Williams, JacobUT/CSR
Datum:9 November 2005
Erschienen in:GPS Solutions
Referierte Publikation:Ja
In ISI Web of Science:Ja
Band:10
DOI :10.1007/s10291-006-0025-9
Seitenbereich:Seiten 249-261
Verlag:Springer Verlag
Status:veröffentlicht
Stichwörter:Spaceborne GPS, semi-codeless tracking, IGOR, OEM4-G2, PolaRx2, BlackJack
HGF - Forschungsbereich:Verkehr und Weltraum (alt)
HGF - Programm:Weltraum (alt)
HGF - Programmthema:W SY - Technik für Raumfahrtsysteme
DLR - Schwerpunkt:Weltraum
DLR - Forschungsgebiet:W SY - Technik für Raumfahrtsysteme
DLR - Teilgebiet (Projekt, Vorhaben):W -- keine Zuordnung (alt)
Standort: Oberpfaffenhofen
Institute & Einrichtungen:Raumflugbetrieb und Astronautentraining
Hinterlegt von: Dr.rer.nat.hab. Oliver Montenbruck
Hinterlegt am:22 Jan 2007
Letzte Änderung:14 Jan 2010 20:18

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