A pre-correlation RFI mitigation algorithm for L-band interferometric radiometers

January 1, 2021·
Jorge Querol
,
A. Camps
,
A. Perez
,
R. Oliva
,
R. Onrubia
,
J. I. Ramirez-Martinez
,
A. Zurita
,
M. Suess
,
M. Martin-Neira
· 1 min read
DOI
Abstract
Radio Frequency Interference (RFI) is a major concern for both real and synthetic aperture radiometers. After the lessons learnt from SMOS, ESA is preparing the next generation of L-band interferometric radiometers with RFI mitigation integrated into the cross-correlators. This work presents a preliminary design and results of a pre-correlation RFI mitigation algorithm tailored for interferometric radiometers. The results show that the correlation error introduced by the RFI is reduced on average to the half, with peaks of 20 dB of mitigation.
Type
Publication
2021 IEEE International Geoscience and Remote Sensing Symposium IGARSS
publication

Abstract & Overview

Radio Frequency Interference (RFI) is a major concern for both real and synthetic aperture radiometers. After the lessons learnt from SMOS, ESA is preparing the next generation of L-band interferometric radiometers with RFI mitigation integrated into the cross-correlators. This work presents a preliminary design and results of a pre-correlation RFI mitigation algorithm tailored for interferometric radiometers. The results show that the correlation error introduced by the RFI is reduced on average to the half, with peaks of 20 dB of mitigation.

Publication Metadata

  • Authors: Jorge Querol, A. Camps, A. Perez, R. Oliva, R. Onrubia, J. I. Ramirez-Martinez, A. Zurita, M. Suess, M. Martin-Neira
  • Venue: 2021 IEEE International Geoscience and Remote Sensing Symposium IGARSS (2021)
  • Research Areas: JCAS & Earth Observation, RFI Mitigation & GNSS Security
  • DOI: 10.1109/igarss47720.2021.9553195
JCAS & Earth Observation RFI Mitigation & GNSS Security