A new system for autonomous satellite navigation is developed and investigated. Unlike many previous studies, however, this system is not limited to the determination of an Earth satellite's current position. By using a two-step technique combined with a general perturbations model, this method allows the air-drag effect on the orbit to be estimated and applied to a future position prediction. Simulations using existing hardware have demonstrated that the algorithm presented is capable of current position estimates of sub-kilometer accuracy. Prediction precisions rival those of ground-based facilities: 8-12 kilometers two weeks in the future for low-Earth orbit. Keywords: Autonomous navigation; Orbit determination; Orbit prediction; Estimation; Position Estimation; Theses. (JHD)


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    Title :

    Autonomous Orbit Determination System for Earth Satellites


    Contributors:
    K. D. Hicks (author)

    Publication date :

    1989


    Size :

    229 pages


    Type of media :

    Report


    Type of material :

    No indication


    Language :

    English




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