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The detection and mitigation of RFI with the Aquarius L-band scatterometer

Show simple item record Freedman, A. P. Piepmeier, J. R. Fischman, M. A. McWatters, D. A. Spencer, M. W. 2014-12-10T00:42:16Z 2014-12-10T00:42:16Z 2008-07-07
dc.identifier.citation IEEE International Geoscience and Remote Sensing Symposium 2008 (IGARSS), Boston, Massachusetts, July 7-11, 2008 en_US
dc.identifier.clearanceno 08-2015
dc.description.abstract The Aquarius sea-surface salinity mission includes an L-band scatterometer to sense sea-surface roughness. This radar is subject to radio-frequency interference (RFI) in its passband from 1258 to 1262 MHz, a region also allocated for terrestrial radio location. Due to its received power sensitivity requirements, the expected RFI environment poses significant challenges. We present the results of a study evaluating the severity of terrestrial RFI sources on the operation of the Aquarius scatterometer, and propose a scheme to both detect and remove problematic RFI signals in the ocean backscatter measurements. The detection scheme utilizes the digital sampling of the ambient input power to detect outliers from the receiver noise floor which are statistically significant, and flags nearby radar echoes as potentially contaminated by RFI. This detection strategy, developed to meet tight budget and data downlink requirements, has been implemented and tested in hardware, and shows great promise for the detection and global mapping of L-band RFI sources. en_US
dc.description.sponsorship NASA/JPL en_US
dc.language.iso en_US en_US
dc.publisher Pasadena, CA : Jet Propulsion Laboratory, National Aeronautics and Space Administration, 2008 en_US
dc.subject Electromagnetic radiative interference en_US
dc.subject Radar data processing en_US
dc.title The detection and mitigation of RFI with the Aquarius L-band scatterometer en_US
dc.type Preprint en_US

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