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Article Dans Une Revue IEEE Transactions on Geoscience and Remote Sensing Année : 2007

A new sidelobe correction algorithm for microwave radiometers: application to the Envisat instrument

Résumé

The antenna temperature measured by a microwave radiometer is converted in brightness temperature (TB) by removing the different contributions that do not come from the main lobe of the antenna. Among them, the Earth contribution in the sidelobes may be significant as for the Environmental Satellite mission due to the antenna position on the platform. In such a case, simple corrections commonly applied on previous altimetry missions are inadequate, and a more accurate correction should be determined. We propose in this paper a new method based on global seasonal tables of contamination. This allows application of an accurate sidelobe correction in space and time in the retrieved TB computation
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Dates et versions

hal-00770719 , version 1 (07-01-2013)

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Estelle Obligis, Laurence Eymard, Ngan Tran. A new sidelobe correction algorithm for microwave radiometers: application to the Envisat instrument. IEEE Transactions on Geoscience and Remote Sensing, 2007, 45, pp.602-612. ⟨10.1109/TGRS.2006.887165⟩. ⟨hal-00770719⟩
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