Title :
On the Detection and Quantification of RFI in L1a Signals Provided by SMOS
Author_Institution :
Inst. de Rech. en Astrophys. et Planetologie (IRAP), Toulouse, France
Abstract :
The SMOS mission is a European Space Agency project aimed at global monitoring of surface Soil Moisture and Ocean Salinity from radiometric L-band observations. This paper is concerned with the contamination of the data collected by SMOS by radio-frequency interferences (RFIs) which degrade the performance of the mission. RFI events are evidenced on both reference radiometer measurements and interferometric ones. It is explained why well-known standard RFI detection methods cannot be used. A specific method for the SMOS mission is presented and illustrated with data acquired during the commissioning phase.
Keywords :
hydrological techniques; hydrology; oceanographic techniques; radiometry; soil; European Space Agency project; L1a signals; SMOS mission; aperture synthesis; global monitoring; ocean salinity; radio-frequency interferences; radiometer measurements; radiometric L-band observations; soil moisture; Brightness temperature; Extraterrestrial measurements; Pollution measurement; Radiometry; Sea measurements; Spline; Temperature measurement; Aperture synthesis; microwave radiometry; radio-frequency interference (RFI);
Journal_Title :
Geoscience and Remote Sensing, IEEE Transactions on
DOI :
10.1109/TGRS.2011.2136350