A narrow band frequency modulation communication system is described which provides for the reception of good quality voice at low carrier-to-noise ratios. The high level of performance is obtained by designing a limiter and phase lock loop combination as a demodulator, so that the bandwidth of the phase lock loop decreases as the carrier level decreases. The system was built for the position location and aircraft communication equipment experiment of the ATS 6 program.


    Access

    Access via TIB

    Check availability in my library


    Export, share and cite



    Title :

    An adaptive narrow band frequency modulation voice communication system


    Contributors:
    Wishna, S. (author)


    Publication date :

    1972-01-01


    Type of media :

    Conference paper


    Type of material :

    No indication


    Language :

    English


    Keywords :


    Ultra narrow band modulation

    Walker, H.R. | IEEE | 2004




    MULTI-FREQUENCY ALARM FOR EMITTING NARROW BAND NOISE

    JUEL GRANT | European Patent Office | 2015

    Free access

    Multi-frequency alarm for emitting narrow band noise

    JUEL GRANT | European Patent Office | 2016

    Free access