This paper describes a program to demonstrate the feasibility of satellite communications to mobile platforms, particularly aircraft. The VHF/UHF 225-400-MHz band was selected to permit the use of simple, hemispherical coverage aircraft antennas. Experiments were carried out in 1965-1966 to establish initial feasibility by measuring the electromagnetic noise environment in this band and the nature of the multipath occurring on the link between a satellite and a nondirectional aircraft antenna. A satellite, LES-3, was orbited in 1965 to provide a propagation signal source for the latter measurements. Two satellites, LES-5 and LES-6, were orbited in 1967 and 1968, respectively, to serve as UHF repeaters for communciations experiments. A multiple-access modulation system, TATS, was developed and tested in ground and aircraft environments with these satellites. In addition, a flush-mounted, crossed-slot aircraft antenna with good coverage properties was developed. (Author)


    Zugriff

    Zugriff über TIB

    Verfügbarkeit in meiner Bibliothek prüfen


    Exportieren, teilen und zitieren



    Titel :

    Satellite Communications to Mobile Platforms


    Beteiligte:
    I. L. Lebow (Autor:in) / K. L. Jordan (Autor:in) / P. R. Drouilhet (Autor:in)

    Erscheinungsdatum :

    1970


    Format / Umfang :

    20 pages


    Medientyp :

    Report


    Format :

    Keine Angabe


    Sprache :

    Englisch




    Satellite communications to mobile platforms

    Lebow, I.L. / Jordan, K.L. Jun. / Drouilhet, P.R. Jun. | Tema Archiv | 1971


    Secure Communications for Mobile Verification Platforms

    Kafetzakis, Emmanouil / Boulgouris, Nikolaos V. / Panaousis, Emmanouil et al. | Tema Archiv | 2013



    Mobile Satellite Communications System

    Nakamura, H. | British Library Online Contents | 1999


    Personal mobile satellite communications

    IIR Ltd | British Library Conference Proceedings | 1994