A digital GN&C system that automatically returns a space vehicle from orbit to a precision touchdown/landing is described. It is demonstrated that a capsule or lifting body manned return vehicle (MRV) with integrated INS/GPS (inertial navigation system/global positioning system) provides a highly autonomous and automatic deorbit, entry, and precision landing capability. Simulation results are used to demonstrate automatic MRV landing feasibility using absolute GPS for a vertically landing capsule vehicle and the feasibility of using integrated differential GPS/INS to provide the accuracy for a lifting body to perform a safe runway landing without needing TACAN (tactical air navigation) or microwave landing system (MLS) navigational aids. Testing of an advanced system using differential GPS/INS is expected to provide an extensive database on GPS/INS system accuracies and to demonstrate a lower cost alternative to TACAN, DME (distance measuring equipment), and MLS navigation aids.


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    Title :

    Integrated Inertial Navigation System/Global Positioning System (INS/GPS) for automatic space return vehicle


    Additional title:

    Integriertes Trägheitsnavigationssystem/Globalpositionierungssystem (INS/GPS) für die automatische Raumfahrzeugrückkehr


    Contributors:
    Braden, K. (author) / Browning, C. (author) / Gelderloos, H. (author)


    Publication date :

    1990


    Size :

    6 Seiten, 4 Quellen



    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English