The present paper describes the problematic of solving the Integer Ambiguities by means of Integer Ambiguities Methods (IAR), where RF signals are available through on-board RF pseudolites and there is not GNSS constellation coverage. For evaluating the IAR methods, it should be used a measurement that identifies the ambiguity validation problem (i.e. reliability of the integer ambiguity solution). Teunissen proposes to use a measurement similar to traditional DOP (Dilution Of Precision) index but associated to the ambiguity estimation process and invariant with the used search domain transformation. The Teunissen's measurement is called Ambiguity Dilution Of Precision (ADOP). However, generic Formation Flying scenario differences with respect to the Teunissen assumed scenario for the closed-form of the ADOP formulation. Teunissen's closed-form formulation is extended from a its original simple scenario to a generic scenario with or without the GNSS constellation coverage including simulated performance assessment tor the IAR in the reference scenario in terms of required Time-To-First-Fix depending on the considered confidence level, RF hardware noise figures, multipath presence and performed manoeuvres by the constellation.


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    Title :

    Ambiguity dilution of precision for radio frequency based relative navigation determination


    Contributors:


    Publication date :

    2003


    Size :

    5 Seiten, 6 Quellen



    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




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