Surveys and Analysis of RFI in Preparation for SMOS: Results from Airborne Campaigns and First Impressions from Satellite Data

Publication: Research - peer-reviewJournal article – Annual report year: 2011

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@article{378c60da208a4e69b5fd33c3cce663fb,
title = "Surveys and Analysis of RFI in Preparation for SMOS: Results from Airborne Campaigns and First Impressions from Satellite Data",
publisher = "I E E E",
author = "Balling, {Jan E.} and Kristensen, {Steen Savstrup} and Søbjærg, {Sten Schmidl} and Niels Skou",
year = "2011",
doi = "10.1109/TGRS.2011.2172796",
volume = "49",
number = "12",
pages = "4821--4831",
journal = "I E E E Transactions on Geoscience and Remote Sensing",
issn = "0196-2892",

}

RIS

TY - JOUR

T1 - Surveys and Analysis of RFI in Preparation for SMOS: Results from Airborne Campaigns and First Impressions from Satellite Data

A1 - Balling,Jan E.

A1 - Kristensen,Steen Savstrup

A1 - Søbjærg,Sten Schmidl

A1 - Skou,Niels

AU - Balling,Jan E.

AU - Kristensen,Steen Savstrup

AU - Søbjærg,Sten Schmidl

AU - Skou,Niels

PB - I E E E

PY - 2011

Y1 - 2011

N2 - Several soil moisture and sea salinity campaigns, including airborne L-band radiometer measurements, have been carried out in preparation for the European Space Agency Soil Moisture and Ocean Salinity (SMOS) mission. The radiometer used in this context is fully polarimetric and is capable of detecting radio frequency interference (RFI) using the kurtosis method. Analyses have shown that the kurtosis method generally detects RFI in an efficient manner, particularly concerning pulsed, low duty cycle signals, but it has some shortcomings when it comes to more continuous wave signal types. Hence, other detection methods have been investigated as well. In particular, inspection of the third and fourth Stokes parameters shows promising results—possibly as a complement to the kurtosis method. The kurtosis method, however, cannot be used with SMOS data. Since SMOS is fully polarimetric, the third and fourth Stokes parameter method is an option, and a first assessment using a fully polarimetric SMOS data set looks promising. Finally, a variable incidence angle signature algorithm is introduced, and the possibility of using this as an RFI indicator is discussed.

AB - Several soil moisture and sea salinity campaigns, including airborne L-band radiometer measurements, have been carried out in preparation for the European Space Agency Soil Moisture and Ocean Salinity (SMOS) mission. The radiometer used in this context is fully polarimetric and is capable of detecting radio frequency interference (RFI) using the kurtosis method. Analyses have shown that the kurtosis method generally detects RFI in an efficient manner, particularly concerning pulsed, low duty cycle signals, but it has some shortcomings when it comes to more continuous wave signal types. Hence, other detection methods have been investigated as well. In particular, inspection of the third and fourth Stokes parameters shows promising results—possibly as a complement to the kurtosis method. The kurtosis method, however, cannot be used with SMOS data. Since SMOS is fully polarimetric, the third and fourth Stokes parameter method is an option, and a first assessment using a fully polarimetric SMOS data set looks promising. Finally, a variable incidence angle signature algorithm is introduced, and the possibility of using this as an RFI indicator is discussed.

U2 - 10.1109/TGRS.2011.2172796

DO - 10.1109/TGRS.2011.2172796

JO - I E E E Transactions on Geoscience and Remote Sensing

JF - I E E E Transactions on Geoscience and Remote Sensing

SN - 0196-2892

IS - 12

VL - 49

SP - 4821

EP - 4831

ER -