The problems of generation of an adequate glideslope signal on a practical airport site are examined, with particular attention to the path-shape degradation introduced by inadequate smooth surface in the primary reflecting area, and hills and similar mirror obstructions under the approach line. Quality factors are derived to establish comparison standards to evaluate the relative performance to be expected in application of various of the available arrays to any particular site. Two antenna arrays are described, which have been found in an extensive program of flight testing to provide substantial improvement in certain of these defective sites.


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    Title :

    Glide-Slope Antenna Arrays for Use under Adverse Siting Conditions


    Contributors:


    Publication date :

    1959-06-01


    Size :

    3361468 byte




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English



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