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Title

Feasibility of RFI mitigation in synthetic aperture radiometery based on subspace spatial filtering

AuthorsPark, H.; Camps, Adriano ; González, Verónica ; Vall-llossera, Mercè
Issue DateJul-2017
PublisherInstitute of Electrical and Electronics Engineers
Citation2017 IEEE International Geoscience and Remote Sensing Symposium (IGARSS): 263-266 (2017)
AbstractThe impact of Radio Frequency Interference (RFI) is a very serious problem for spaceborne microwave radiometry. Many Soil Moisture Ocean Salinity (SMOS) images show serious contamination by the RFI. SMOS is even more impacted by the RFI than real aperture case because the grating lobes are usually higher in Synthetic Aperture Interferometric Radiometer (SAIR) compared to real aperture one. RFI effects should properly be mitigated or filtered out to retrieve the geophysical parameters from SMOS measurements. This work presents a feasibility study of RFI mitigation/filtering for SAIRs. Instead of dealing with brightness temperature image directly, RFI filtering of the subspace of covariance matrix is introduced
Description2017 IEEE International Geoscience and Remote Sensing Symposium (IGARSS), 23-28 July 2017, Fort Worth, TX, USA
Publisher version (URL)https://dx.doi.org/10.1109/IGARSS.2017.8126945
URIhttp://hdl.handle.net/10261/161793
Identifiersdoi: 10.1109/IGARSS.2017.8126945
issn: 2153-7003
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