• Login
    View Item 
    •   FFI Publications Home
    • Publications
    • Rapporter
    • View Item
    •   FFI Publications Home
    • Publications
    • Rapporter
    • View Item
    JavaScript is disabled for your browser. Some features of this site may not work without it.

    Direction finding experiment in North Scandinavia

    View/Open
    03-02356.pdf (1.221Mb)
    Date
    2003
    Author
    Jacobsen, Bjørn
    Metadata
    Show full item record
    Abstract
    High-frequency (HF) radio wave propagation at high latitudes is greatly affected by geomagnetic and ionospheric conditions, and both civilian and military users need reliable forecasts of the propagation environment. In particular, the presence of large electron density gradients within the polar cap and auroral oval often lead to off-great circle propagation, which can be a serious problem for transmitter locating techniques based on direction finding and triangulation. Based on the large amount of data expected from a new Direction Finding (DF) experiment in North Scandinavia, a statistical classification of signal directional characteristics under various geophysical conditions and for all seasons can be made. In this report, cases of both quiet and disturbed geomagnetic conditions have been studied, and comparisons have been made with data from magnetic disturbance observatories in the same geographic region. In addition a first statistical study of one month of DF data is presented.
    URI
    http://hdl.handle.net/20.500.12242/1690
    Collections
    • Rapporter

    Browse

    All of FFI PublicationsCommunities & CollectionsBy Issue DateAuthorsTitlesThis CollectionBy Issue DateAuthorsTitles

    My Account

    Login

    CONTACT US

    • FFI Kjeller
      FFI, PO Box 25, 2027 Kjeller
    • Office Address: Instituttvn 20,
      Phone 63 80 70 00
    • biblioteket@ffi.no

    HELPFUL

    • About FFI
    • Career
    • Reports

    Sitemap

    • About cookies (cookies)
    • Newsletter
    • Sitemap

    FOLLOW US

     

     

    © Copyright Norwegian Defence Research Establishment
    Powered by KnowledgeArc