This paper describes and predicts the performance of a conceptual autonomous GPS-based navigation system for NASA's planned lunar Gateway. This system is based on the flight-proven Magnetospheric Multiscale (MMS) GPS navigation system, augmented with an earth-pointed high-gain antenna and with an option for an atomic clock. High-fidelity simulations, calibrated against MMS flight data and making use of GPS transmitter patterns from the GPS Antenna Characterization Experiment (ACE) project are developed for operation of the system in the Gateway Near-Rectilinear Halo Orbit (NRHO). The results indicate that GPS can provide an autonomous, realtime navigation capability with comparable, or superior, performance to traditional Deep Space Network approach with eight hours of tracking per day.


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    Title :

    GPS Based Autonomous Navigation Study for the Lunar Gateway


    Contributors:

    Conference:

    Annual American Astronautical Society (AAS) Guidance, Navigation, and Control Conference ; 2019 ; Breckenridge, CO, United States


    Publication date :

    2019-01-13


    Type of media :

    Conference paper


    Type of material :

    No indication


    Language :

    English




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