Report presents comparative study of acquisition performances of several types of carrier-signal-tracking loops for reception of quadrature phase-shift keying (QPSK) signals. Loops classified into three types: maximum a-posteriori, (MAP) estimation loop, Costas cross-over loop, and generalized Costas loop. Mathematical models developed. In-phase and quadrature signals generated numerically and processed according to loop algorithms. Results show though MAP loop produces smallest squaring loss at all signal-to-noise ratios, others sometimes exhibit shorter acquisition time and greater probability of acquisition.


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    Title :

    Acquisition Performances Of QPSK Carrier-Tracking Loops


    Contributors:

    Published in:

    Publication date :

    1992-09-01



    Type of media :

    Miscellaneous


    Type of material :

    No indication


    Language :

    English




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