The light airborne reflectometer for GNSS-R observations (LARGO) instrument: Initial results from airborne and Rover field campaigns

A. Alonso-Arroyo, A. Camps, Sandra Monerris-Belda, C. Rudiger, J. P. Walker, G. Forte, D. Pascual, H. Park, R. Onrubia

Research output: Chapter in Book/Report/Conference proceedingConference PaperResearchpeer-review

25 Citations (Scopus)


Global Navigation Satellite Systems (GNSS)-Reflectometry (GNSS-R) has proved to be a useful technique for the estimation of Soil Moisture (SM). In the past 10 years, different techniques such as the Interference Pattern Technique (IPT), the Interferometric Complex Field (ICF) or power measurements of direct and reflected GNSS signals have been used. This work presents a reflectometer concept that can be used for air-borne, Unmanned Aerial Vehicle (UAV), car-borne, and ground-based measurements. It also presents the hardware implementation and the data acquisition scheme. An algorithm for the estimation of the reflectivity of the surface under observation has been developed and compared to concurrent radiometric measurements. Initial results from an airborne field experiment have shown a good correlation between both data sets.

Original languageEnglish
Title of host publication2014 IEEE International Geoscience and Remote Sensing Symposium (IGARSS), Proceedings
Editors Josée Lévesque, Jean-Marc Garneau, Ellsworth LeDrew
Place of PublicationPiscataway NJ
PublisherIEEE, Institute of Electrical and Electronics Engineers
Number of pages4
ISBN (Electronic)9781479957750
Publication statusPublished - 4 Nov 2014
EventIEEE International Geoscience and Remote Sensing Symposium 2014 - Quebec City Convention Centre, Quebec, Canada
Duration: 13 Jul 201418 Jul 2014
Conference number: 35th (IEEE Conference Proceedings)


ConferenceIEEE International Geoscience and Remote Sensing Symposium 2014
Abbreviated titleIGARSS 2014
Otherjoint International Geoscience and Remote Sensing Symposium (IGARSS 2014) / 35th Canadian Symposium on Remote Sensing (35th CSRS).

CSRS is not on the 2018 ERA list so this is linked to the ERA record for IGARSS
Internet address


  • GNSS-R
  • Soil Moisture
  • Reflectometry
  • Radiometry
  • L-Band

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