This paper presents the results of flight test evaluation of the DGPS (Differential Global Positioning System) installed on the MuPAL-e research helicopter of the National Aerospace Laboratory of Japan (NAL). This system provides accurate aircraft position data, whose specification in 1m horizontally. Two different sources of DGPS correction data can be selected: NAL's GPS ground station via a UHF telemetry system, or a medium frequency radio beacon signal from the GPS ground stations operated by the Japan Coast Guard (JCG), which are originally designed for ships' navigation. Since 27 JCG stations provide coverage all around the coast of Japan, no additional ground facilities are required except when operating in mountainous areas. Off-line kinematic GPS (KGPS) data and a laser and tracker system were used to provide reference data to verify the DGPS positioning accuracy.


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    Title :

    Techical Report of National Aerospace Laboratory: Flight Test Evaluation of DGPS Installed on NAL's Research Helicopter MuPAL-e


    Contributors:
    N. Matayoshi (author) / Y. Okuno (author) / H. Inokuchi (author)

    Publication date :

    2003


    Size :

    28 pages


    Type of media :

    Report


    Type of material :

    No indication


    Language :

    English