Aircraft navigation using doppler and orbital information transmitted from a satellite is shown to be feasible, at least in a limited sense. The least squares, differential correction method of computation is used. If sufficiently accurate velocity information can be provided, this approach could yield positions for long-range aircraft that are an order of magnitude more accurate than have been achieved with other world-wide, all-weather, all-altitude systems, such as doppler and inertial navigators. The least squares, differential corrections solutions for both position and velocity do not converge for reasonable initial errors. Therefore, accurate aircraft velocity components, such as those provided by a doppler navigator, must be known. For one knot velocity errors the position of a 500-knot aircraft can be determined to one-half nautical mile or better for latitudes up to 70 degrees. (Author)


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    Title :

    Aircraft Navigation by Satellite


    Contributors:
    H. A. Myers (author)

    Publication date :

    1962


    Size :

    1 pages


    Type of media :

    Report


    Type of material :

    No indication


    Language :

    English




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