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.
Antenna pattern correction for the Nimbus-7 SMMR
Richtdiagrammkorrektur fuer das Mehrkanal-Mikrowellen-Radiometer von Nimbus-7
IEEE Transactions on Geoscience and Remote Sensing ; GE-24 , 2 ; 212-219
1986
8 Seiten, 17 Quellen
Article (Journal)
English
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