A report is presented on a data compression scheme that will be used to reduce the SAR (synthetic-aperture radar) data rate on the US NASA Magellan (MGN) mission to Venus. The MGN spacecraft has only one scientific instrument, namely, a radar system that is used for imaging the surface. for altimetric profiling of the planet topography, and for measuring radiation of the planet surface. A straightforward implementation of the scientific requirements of the mission results in a data rate higher that can be accommodated by the available system bandwidth. A data-rate-reduction scheme which includes operation of the radar in burst mode and block adaptive quantization of the SAR data is selected to satisfy the scientific requirements.


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    Titel :

    Block adaptive quantization of Magellan SAR data


    Weitere Titelangaben:

    Blockadaptive Quantisierung von Magellan-SAR-Daten


    Beteiligte:
    Kwok, R. (Autor:in) / Johnson, W.T.K. (Autor:in)


    Erscheinungsdatum :

    1989


    Format / Umfang :

    9 Seiten, 14 Quellen



    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Print


    Sprache :

    Englisch




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