A simulation is presented in which polar ice is modeled as a general multilayered stratified medium. Using a recursive transmission-line model, the time reflection coefficient for any given input pulse is computed. The results obtained by modeling the ice sheets as lossless and multilayered media are shown to be consistent with measured results. They also provide insights into the mechanisms affecting radar returns. In particular, the simulations suggest that the internal reflections in the polar ice sheet are due more to the variation in layer-to-layer permittivity rather than the conductivity. The best qualitative agreement between the simulations and the observed data were observed when the permittivity variations in each layer were varied randomly about the mean dielectric constant of the ice sheet.


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    Titel :

    A computer simulation for the analysis of radar echo-sounding of polar ice sheets


    Weitere Titelangaben:

    Eine Simulation mit Computer fuer die Analyse von Radar-Echotoenen bei Polareisplatten


    Beteiligte:
    Sivaprasad, K. (Autor:in) / Petrin, M.F. (Autor:in)

    Erschienen in:

    Erscheinungsdatum :

    1987


    Format / Umfang :

    6 Seiten, 23 Quellen



    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Print


    Sprache :

    Englisch





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