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    Vurdering av ENVISAT ASAR for skipsdeteksjon

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    04-02121.pdf (9.274Mb)
    Date
    2004
    Author
    Arnesen, Tonje Nanette
    Olsen, Richard
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    Abstract
    Ship detection and monitoring has become one of the first operational services from civilian spaceborne Synthetic Aperture Radar. The Norwegian Coast Guard presently uses such data to support fisheries monitoring in Northern waters. The dual-polarised AP mode of the Advanced Synthetic Aperture Radar deployed on ENVISAT provides a novel capability to extend the range of useful incidence angles for ship detection. At steep incidence angles, crosspolarised images provide much improved ship to sea contrast ratios, compared to conventional co-polarised images. Using cross-polarised data in one channel and co-polarised data in the second, one may also obtain combinations of high contrast ship images in one channel as well as useful images of ship wakes in the second channel.
    URI
    http://hdl.handle.net/20.500.12242/1734
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