The NASA Goddard Space Flight Center (GSFC) Global Positioning System (GPS) applications test facility has been established within the GSFC Guidance Navigation and Control Center. The GPS test facility is currently housing the Global Simulation Systems Inc. (GSSI) STR2760 GPS satellite 40-channel attitude simulator and a STR4760 12-channel navigation simulator. The facility also contains a few other resources such as an atomic time standard test bed, a rooftop antenna platform and a radome. It provides a new capability for high dynamics GPS simulations of space flight that is unique within the aerospace community. The GPS facility provides a critical element for the development and testing of GPS based technologies i.e. position, attitude and precise time determination used on-board a spacecraft, suborbital rocket balloon. The GPS simulation system is configured in a transportable rack and is available for GPS component development as well as for component, spacecraft subsystem and system level testing at spacecraft integration and tests sites. The GPS facility has been operational since early 1996 and has utilized by space flight projects carrying GPS experiments, such as the OrbView-2 and the Argentine SAC-A spacecrafts. The SAC-A pre-flight test data obtained by using the STR2760 simulator and the comparison with preliminary analysis of the GPS data from SAC-A telemetry are summarized. This paper describes pre-flight tests and simulations used to support a unique spaceborne GPS experiment. The GPS experiment mission objectives and the test program are described, as well as the GPS test facility configuration needed to verify experiment feasibility. Some operational and critical issues inherent in GPS receiver pre-flight tests and simulations using this GPS simulation, and test methodology are described. Simulation and flight data are presented. A complete program of pre-flight testing of spaceborne GPS receivers using a GPS constellation simulator is detailed.


    Access

    Access via TIB

    Check availability in my library


    Export, share and cite



    Title :

    Pre-Flight Testing of Spaceborne GPS Receivers using a GPS Constellation Simulator


    Contributors:

    Conference:

    ION GPS 1999 ; 1999 ; Nashville, TN, United States


    Publication date :

    1999-01-01


    Type of media :

    Conference paper


    Type of material :

    No indication


    Language :

    English







    Pre-Flight Testing of Spaceborne GPS Receivers Using a GPS Constellation Simulator

    Kizhner, Semion / Davis, Edward / Alonso, Roberto | NTRS | 1999


    Benchmark Testing for Spaceborne Global Positioning System Receivers

    Holt, Greg / Lightsey, E. / Montenbruck, Oliver | AIAA | 2003