This paper describes a proposed system for improved exo-ionospheric communications. The dynamic magneto-ionic character of the channel is considered, in particular, the multipath situation arising therefrom. An ideal matched filter is found, matched to the multipath structure and the dynamics of the exo-ionospheric channel. The improvement in the signal-to-noise ratio through the matched filter is calculated. It is seen to depend on the quotient of the input signal to the bandwidths of the ``measuring'' filter and the ``integrating'' filter. Further advantages are shown to accrue from signal processing at the transmitter involving both increases in range, and, in particular, secure coding possibilities.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    System Design for Improved Extra-Terrestrial Communications


    Contributors:


    Publication date :

    1967-09-01


    Size :

    1500916 byte




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English




    Extra-Terrestrial Relays

    Williamson, Mark | Online Contents | 2005



    The Search for Extra Terrestrial Intelligence

    British Library Conference Proceedings | 1992