In a nonideal transmission environment, the transmission of video sound in the form of an FM subcarrier above the video baseband causes interactions between video and sound subcarrier which result in signal distortion. The degree of distortion depends on the type of channel impairments and the selection of transmission parameters. While the fidelity of the video signal can be preserved by mainly limiting the subcarrier level, the quality of the audio channel can be optimized by choosing the right subcarrier frequency. It can be shown that for a given video-carrier-to-noise ratio, subcarrier power below video signal power, and for given system impairments, there exists an optimum subcarrier location which provides a maximum audio-signal-to-noise ratio


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    Title :

    Television sound subcarrier transmission in space communication


    Additional title:

    Zwischentraegeruebertragung des Fernsehtones in der Raumfahrt


    Contributors:

    Published in:

    Publication date :

    1974


    Size :

    , 2 Quellen



    Type of media :

    Article (Journal)


    Type of material :

    Print


    Language :

    English




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