Tracking loop filter with continuous bandwidth control smooths transition from wide to narrow band. Circuit was designed for Space Shuttle where bandwidth varied between 320 Hz for acquisition and 20 Hz for tracking. Field-effect transitor (FET) acts as voltage controlled variable resistance, changing time constant of filter between phase detector and voltage-controlled oscillator in phase-locked loop.


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    Titel :

    Continuous control of phase-locked-loop bandwidth


    Beteiligte:
    Motal, G. W. (Autor:in) / Vanelli, J. C. (Autor:in)

    Erschienen in:

    Erscheinungsdatum :

    1980-08-01



    Medientyp :

    Sonstige


    Format :

    Keine Angabe


    Sprache :

    Englisch