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RFI Detection and Mitigation using Independent Component Analysis as a Pre-ProcessorRadio-frequency interference (RFI) has negatively impacted scientific measurements of passive remote sensing satellites. This has been observed in the L-band radiometers Soil Moisture and Ocean Salinity (SMOS), Aquarius and more recently, Soil Moisture Active Passive (SMAP). RFI has also been observed at higher frequencies such as K band. Improvements in technology have allowed wider bandwidth digital back ends for passive microwave radiometry. A complex signal kurtosis radio frequency interference detector was developed to help identify corrupted measurements. This work explores the use of Independent Component Analysis (ICA) as a blind source separation (BSS) technique to pre-process radiometric signals for use with the previously developed real and complex signal kurtosis detectors.
Document ID
20160013421
Acquisition Source
Goddard Space Flight Center
Document Type
Conference Paper
Authors
Schoenwald, Adam J. (ASRC Federal Space and Defense Greenbelt, MD, United States)
Gholian, Armen (NASA Goddard Space Flight Center Greenbelt, MD United States)
Bradley, Damon C. (NASA Goddard Space Flight Center Greenbelt, MD United States)
Wong, Mark (NASA Goddard Space Flight Center Greenbelt, MD United States)
Mohammed, Priscilla N. (Morgan State Univ. Baltimore, MD, United States)
Piepmeier, Jeffrey R. (NASA Goddard Space Flight Center Greenbelt, MD United States)
Date Acquired
November 15, 2016
Publication Date
October 17, 2016
Subject Category
Earth Resources And Remote Sensing
Report/Patent Number
GSFC-E-DAA-TN38347
GSFC-E-DAA-TN37256
Meeting Information
Meeting: National Radio Astronomy Observatory (NRAO): Coexisting with Radio Frequency Interference
Location: Sorrocco, NM
Country: United States
Start Date: October 17, 2016
End Date: October 20, 2016
Sponsors: National Radio Astronomy Observatory
Funding Number(s)
CONTRACT_GRANT: NNG11HP16A
CONTRACT_GRANT: NNG13CR48C
Distribution Limits
Public
Copyright
Public Use Permitted.
Keywords
independent component analysis
radiometers
microwaves
kurtosis

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