Commercial automobile navigation systems currently employ a Global Positioning System (GPS) receiver coupled with a dead reckoning system and a map-matching algorithm. The dead reckoning system, which compensates for GPS inaccuracies and frequent GPS signal obstructions, employs an odometer, a directional sensor, and a backlight signal. The dead reckoning system along with a map-matching algorithm updates the position whenever the vehicle completes a sharp turn into a street whose position is distinguishable on the stored map. In this paper a positioning system is proposed, which employs only a DGPS or GPS receiver and a map-matching algorithm. The algorithm correlates the received power from different GPS satellite vehicles (SVs), leading to a specific signature, to a stored map with periodic time-varying estimates of SVs received powers. An experimental approach is presented to examine the feasibility of applying the proposed positioning system.


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    Titel :

    Map-based land vehicle navigation system with DGPS


    Beteiligte:
    Saab, S.S. (Autor:in) / Kassas, Z.M. (Autor:in)

    Erschienen in:

    Erscheinungsdatum :

    01.01.2002


    Format / Umfang :

    509571 byte




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch



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