Paper Info
Title
Radio-Frequency Interference Detection And Mitigation Algorithms For Synthetic Aperture Radiometers
Abstract
The European Space Agency (ESA) successfully launched the Soil Moisture and Ocean Salinity (SMOS) mission in November 2, 2009. SMOS uses a new type of instrument, a synthetic aperture radiometer named MIRAS that provides full-polarimetric multi-angular L-band brightness temperatures, from which regular and global maps of Sea Surface Salinity (SSS) and Soil Moisture (SM) are generated. Although SMOS operates in a restricted band (1400-1427 MHz), radio-frequency interference (RFI) appears in SMOS imagery in many areas of the world, and it is an important issue to be addressed for quality SSS and SM retrievals. The impact on SMOS imagery of a sinusoidal RFI source is reviewed, and the problem is illustrated with actual RFI encountered by SMOS. Two RFI detection and mitigation algorithms are developed (dual-polarization and full-polarimetric modes), the performance of the second one has been quantitatively evaluated in terms of probability of detection and false alarm (using a synthetic test scene), and results presented using real dual-polarization and full-polarimetric SMOS imagery. Finally, a statistical analysis of more than 13,000 L1b snap-shots is presented and discussed.
Year
DOI
Venue
2011
10.3390/a4030155
ALGORITHMS
Keywords
Field
DocType
synthetic aperture radiometer, radio-frequency interference, L-band, detection, mitigation, algorithm
False alarm,L band,Synthetic aperture radar,Electromagnetic interference,Algorithm,Interference (wave propagation),Statistical power,Mathematics,Brightness,Radiometer
Journal
Volume
Issue
ISSN
4
3
1999-4893
Citations 
PageRank 
References 
12
0.68
8
Authors
7
Name
Order
Citations
PageRank
Adriano Camps11050218.43
Jérôme Gourrion2455.05
José Miguel Tarongí3689.69
Mercè Vall-Llossera440963.35
Antonio Gutierrez5152.19
José Barbosa6256.67
Rita Castro7152.52