Frequency Allocations in Remote Sensing

About Frequency Allocations in Remote Sensing


The Frequency allocations in Remote Sensing (FARS) Technical Committee goal is to interface between GRSS and the radio-frequency regulatory world by

  • Educating the remote sensing community on spectrum management processes and issues
  • Promoting the development of radio frequency interference detection and mitigation technology
  • Organizing technical sessions at conferences, workshops, etc. on the above processes, issues and technologies,
  • Providing spectrum managers and regulators with technical input and perspective from remote sensing scientists and engineers
  • Fostering the exchange of information between researchers in different fields, such as remote sensing, radio astronomy, telecommunications, etc. with the common scope of minimizing harmful interference between systems
  • Organization
  • Tools
  • Resources
  • Documents
  • Members
  • Contact


The FARS Technical Committee encourages participation from all its members. The committee organization includes the Chair, two Co-Chairs, a Secretary, and an Adviser on Spectrum Management.

FARS Technical Committee Chair

Dr. Paolo de Matthaeis
Goddard Earth Sciences Technology and Research Center (GESTAR)
NASA Goddard Space Flight Center
Greenbelt, Maryland, USA

FARS Technical Committee Co-Chair

Mr. Roger Oliva Balague
Department of Earth Observation Projects
European Space Agency
Madrid, Spain

FARS Technical Committee Co-Chair

Dr. Tobias Bollian
German Aerospace Center (DLR)

FARS Technical Committee Secretary

Dr. Priscilla N. Mohammed
Goddard Earth Sciences Technology and Research Center (GESTAR)
NASA Goddard Space Flight Center
Greenbelt, Maryland, USA

FARS Technical Committee Advisor on Spectrum Management

Mr. Thomas von Deak
National Oceanic and Atmospheric Administration (NOAA) – Consultant

FARS China Subcommittee Leader

Dr. Ming-Liang Tao
Northwestern Polytechnical University 
Xi'an, China


Welcome to the IEEE GRSS database of Radio Frequency Interference (RFI) observations and frequency allocations for remote sensing. These online tools are still under development and enable one to:

  • RFI Observation Tool:  List RFI observations in tabular form and locate them on a map
  • Frequency Allocation Tool:  Lookup and display frequency allocations, with particular attention to those for EESS (Earth Exploration Satellite Service)


A brief tutorial on how to use the RFI observations tool is available here.

Funding for developing these web applications is being provided by the IEEE Geoscience and Remote Sensing Society.

The database of RFI observation has been made possible thanks to the contribution of the SMOS and SMAP project teams to the RFI observation database. It is not intended to cover all occurrences of existing interference affecting these sensors. In addition, RFI may still be present in other EESS bands, even if it is not reported here.

RFI Observation ToolFrequency Allocation Tool


Useful Links

Remote sensing instruments and missions:


RFI detection and localization for SMOS radiometer

Oliva, Roger; Daganzo, Elena; Richaume, Philippe; Kerr, Y; Cabot, Francois; Soldo, Y; Anterrieu, Eric; Reul, Nicolas; Gutierrez, Antonio; Barbosa, Jose; Lopes, G. “Status of Radio Frequency Interference (RFI) in the 1400–1427MHz passive band based on six years of SMOS mission,” Remote Sensing of Environment, Vol. 180, 2016 (

Yan Soldo, François Cabot, Ali Khazaal, Maciej Miernecki, Ewa Słomińska, Rémy Fieuzal, and Yann H. Kerr, “Localization of RFI Sources for the SMOS Mission: A Means for Assessing SMOS Pointing Performances,” IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, Vol. 8, No. 2, February 2015. (


RFI detection and localization for SMAP radiometer

Jeffrey R. Piepmeier, Joel T. Johnson, Priscilla N. Mohammed, Damon Bradley, Christopher Ruf, Mustafa Aksoy, Rafael Garcia, Derek Hudson, Lynn Miles, and Mark Wong, “Radio-Frequency Interference Mitigation for the Soil Moisture Active Passive Microwave Radiometer,” IEEE Transactions on Geoscience and Remote Sensing, Vol. 52, No. 1, January 2014. (

Soldo, Y., Le Vine, D.M., Bringer, A., de Matthaeis, P., Oliva, R., Johnson, J.T. and Piepmeier, J.R., “Location of Radio-Frequency Interference Sources Using the SMAP L-Band Radiometer,” IEEE Transactions on Geoscience and Remote Sensing, Vol. 99, pp.1-13, 2018. (


List of Current and Past Chairs

  • 2020–present: Dr. Paolo de Matthaeis / Dr. Roger Oliva / Dr. Tobias Bollian
  • 2017–2020: Dr. Paolo de Matthaeis / Dr. Roger Oliva / Dr. Yan Soldo
  • 2013–2017: Dr. Sidharth Misra / Dr. Paolo de Matthaeis
  • 2011-2013: Dr. William Blackwell / Dr. Ian Adams
  • 2007-2009: Dr. Shannon Brown / Dr. Ian Adams
  • 2005-2007: Dr. Joel Johnson / Dr. Dave Kunkee & Dr. Shannon Brown
  • 2003-2005: Dr. David Kunkee / Dr. David DeBoer
  • 2002-2003: Dr. Chris Ruf / Dr. Ram Narayanan
  • 2001-2002: Dr. Ram Narayanan / Dr. Chris Ruf
  • 2000-2001: Dr. Ram Narayanan


Presentations and minutes from past annual meetings


Other Recent Meetings


FARS-related Magazine Articles

Current membership (as of February 2021)


You can contact the Committee Chairs by email at

Membership in the FARS Technical committee is open to anyone interested in issues related to frequency allocations for remote sensing. IEEE Geoscience and Remote Society membership is encouraged, but not required to join the FARS Technical Committee. Join the FARS Technical Committee

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