The philosophy and method used to develop the antenna pattern correction (APC) algorithm that was used on the data from the Scanning Multichannel Microwave Radiometer (SMMR) on Nimbus-7 are discussed. There are limitations on what can be accomplished with such a procedure, and these limitations are explored with the aid of Fourier analysis, even though the algorithm used on the SMMR data does not perform any Fourier transforms. The resulting analysis shows that, for the SMMR instrument, no useful improvement could be made in the data in terms of reduction of sidelobes; however, the quality of the sea surface temperature retrievals could be improved considerably by matching the antenna beamwidths at the different frequencies.


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    Titel :

    Antenna pattern correction for the Nimbus-7 SMMR


    Weitere Titelangaben:

    Richtdiagrammkorrektur fuer das Mehrkanal-Mikrowellen-Radiometer von Nimbus-7


    Beteiligte:
    Milman, A.S. (Autor:in)

    Erschienen in:

    Erscheinungsdatum :

    1986


    Format / Umfang :

    8 Seiten, 17 Quellen



    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Print


    Sprache :

    Englisch





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    P. Gloersen / D. Cavalieri | NTIS | 1979


    Antenna Drive System for the Nimbus Satellite

    G. J. Wedlake / J. D. Loudon | NTRS | 1971


    Nimbus-7

    Foreman, M. / Pashby, P. | NTRS | 1991


    SMMR simulator radiative transfer calibration model. 1: Derivation

    Calhoon, C. D. / Link, S. / Doyle, M. et al. | NTRS | 1979