Development and characterization of fully polarimetric noise injection radiometer for MIRAS. - Andreas Colliander; Simo Tauriainen; Tuomo Auer; Juha Kainulainen; Josu Uusitalo; Martti Toikka; Martti Hallikainen (IGARSS, 2003)

Development of airborne aperture synthetic radiometer (HUT-2D). - Kimmo Rautiainen; Robert Butora; Tuomo Auer; Jani Kettunen; Juha Kainulainen; Ilkka Mononen; Diego Beltrami; Martti Hallikainen (IGARSS, 2003)

MIRAS reference radiometer: a fully polarimetric noise injection radiometer. - Andreas Colliander; Simo Tauriainen; Tuomo Auer; Juha Kainulainen; Josu Uusitalo; Martti Toikka; Martti T. Hallikainen (IEEE Trans. Geosci. Remote. Sens., 2005)

SMOS Calibration Subsystem. - Juha Lemmetyinen; Josu Uusitalo; Kimmo Rautiainen; Juha Kainulainen; Nestori Fabritius; Mikael Levander; Ville Kangas; Heli Greus; Jörgen Pihlflyckt; Anna Kontu; Sami Kemppainen; Martti Hallikainen; et al. (IGARSS, 2006)

Radiometric performance of interferometric synthetic aperture radiometer HUT-2D. - Juha Kainulainen; Kimmo Rautiainen; Martti Hallikainen; Matias Takala (IGARSS, 2007)

Helsinki University of Technology Synthetic Aperture Radiometer -HUT-2D. - Kimmo Rautiainen; Juha Kainulainen; Tuomo Auer; Simo Tauriainen; Martti Hallikainen (IGARSS, 2007)

First 2-D Interferometric Radiometer Imaging of the Earth From an Aircraft. - Juha Kainulainen; Kimmo Rautiainen; Simo Tauriainen; Tuomo Auer; Jani Kettunen; Martti Hallikainen (IEEE Geosci. Remote. Sens. Lett., 2007)

SMOS Calibration Subsystem. - Juha Lemmetyinen; Josu Uusitalo; Juha Kainulainen; Kimmo Rautiainen; Nestori Fabritius; Mikael Levander; Ville Kangas; Heli Greus; Jörgen Pihlflyckt; Anna Kontu; Sami Kemppainen; Andreas Colliander; et al. (IEEE Trans. Geosci. Remote. Sens., 2007)

Experimental Demonstration of the Corbella Equation for Aperture Synthesis Microwave Radiometry. - Pablo Moreno-Galbis; Juha Kainulainen; Manuel Martín-Neira (IEEE Trans. Geosci. Remote. Sens., 2007)

The Flat Target Transformation. - Manuel Martín-Neira; Martin Suess; Juha Kainulainen; Fernando Martín-Porqueras (IEEE Trans. Geosci. Remote. Sens., 2008)

Helsinki University of Technology L-Band Airborne Synthetic Aperture Radiometer. - Kimmo Rautiainen; Juha Kainulainen; Tuomo Auer; Jörgen Pihlflyckt; Jani Kettunen; Martti Hallikainen (IEEE Trans. Geosci. Remote. Sens., 2008)

Sea Surface Salinity Retrieval Demonstration using Datasets of Synthetic Aperture Radiometer HUT-2D. - Juha Kainulainen; Kimmo Rautiainen; Juha Lemmetyinen; Martti Hallikainen; Fernando Martín-Porqueras; Manuel Martín-Neira (IGARSS (3), 2009)

Soil Moisture Retrieval from HUT-2D Synthetic Aperture Radiometer Data. - Jaakko Seppänen; Juha Kainulainen; Juha Lemmetyinen; Kimmo Rautiainen; Martti Hallikainen; Marko Mäkynen (IGARSS (3), 2009)

Error Propagation in Calibration Networks of Synthetic Aperture Radiometers. - Juha Kainulainen; Juha Lemmetyinen; Kimmo Rautiainen; Andreas Colliander; Josu Uusitalo; Janne Lahtinen (IEEE Trans. Geosci. Remote. Sens., 2009)

Comparing data of two airborne L-band radiometers with different spatial resolution over a heterogeneous land surface. - Johanna T. Dall'Amico; Juha Kainulainen; Alexander Loew; Wolfram Mauser (IGARSS, 2010)

Studies of radio frequency interference at L-band using an airborne 2-D interferometric radiometer. - Martti Hallikainen; Juha Kainulainen; Jaakko Seppänen; Anssi Hakkarainen; Kimmo Rautiainen (IGARSS, 2010)

SMOS calibration and validation activities with airborne interferometric radiometer HUT-2D during spring 2010. - Juha Kainulainen; Kimmo Rautiainen; Pauli Sievinen; Jaakko Seppänen; Erkka Rouhe; Martti Hallikainen; Johanna T. Dall'Amico; Florian Schlenz; Alexander Loew; Alexander Bircher; Carsten Montzka (IGARSS, 2010)

L-band measurements of boreal soil. - Anna Kontu; Juha Lemmetyinen; Jouni Pulliainen; Kimmo Rautiainen; Juha Kainulainen; Jaakko Seppänen (IGARSS, 2010)

Smos payload performance assessment. - Manuel Martín-Neira; Ignasi Corbella; Francesc Torres 002; François Cabot; Josep Closa; Juha Kainulainen; Rita Castro; José Barbosa; Antonio Gutierrez; Fernando Martín-Porqueras; Roger Oliva; Eric Anterrieu; et al. (IGARSS, 2010)

Experimental validation of the Corbella's visibility function using HUT-2D and MIRAS. - Fernando Martín-Porqueras; Juha Kainulainen; Manuel Martín-Neira; Ignasi Corbella; Roger Oliva; Rita Castro; José Barbosa; Antonio Gutierrez (IGARSS, 2010)

Lessons learned from HUT-2D L-band airborne demonstrator. - Juha Kainulainen; Kimmo Rautiainen; Martti T. Hallikainen (IGARSS, 2011)

Radio brightness validation on different spatial scales during the SMOS validation campaign 2010 in the Rur catchment, Germany. - Carsten Montzka; Heye Bogena; Lutz Weihermüller; François Jonard; Marin Dimitrov; Catherine Bouzinac; Juha Kainulainen; Jan E. Balling; Jan Vanderborght; Harry Vereecken (IGARSS, 2011)

Synthetic aperture radiometer measurements of freezing soil. - Jaakko Seppänen; Juha Kainulainen; Martti Hallikainen; Juha Lemmetyinen; Kimmo Rautiainen (IGARSS, 2011)

Detection of a Sea Surface Salinity Gradient Using Data Sets of Airborne Synthetic Aperture Radiometer HUT-2-D and a GNSS-R Instrument. - Juha Kainulainen; Kimmo Rautiainen; Juha Lemmetyinen; Martti T. Hallikainen; Fernando Martín-Porqueras; Manuel Martín-Neira (IEEE Trans. Geosci. Remote. Sens., 2011)

Experimental Study on Radiometric Performance of Synthetic Aperture Radiometer HUT-2D - Measurements of Natural Targets. - Juha Kainulainen; Kimmo Rautiainen; Juha Lemmetyinen; Jaakko Seppänen; Pauli Sievinen; Matias Takala; Martti T. Hallikainen (IEEE Trans. Geosci. Remote. Sens., 2011)

Synthesizing SMOS zero-baselines with Aquarius brightness temperature simulator. - Andreas Colliander; Emmanuel P. Dinnat; David M. Le Vine; Juha Kainulainen (IGARSS, 2012)

Multifrequency microwave radiometer measurements of snow on lake ice. - Martti Hallikainen; Matti Vaaja; Annakaisa von Lerber; Juha Kainulainen; Jaakko Seppänen; Juha Lemmetyinen (IGARSS, 2012)

SMOS instrument performance and calibration. - Manuel Martín-Neira; Ignasi Corbella; Francesc Torres 002; Juha Kainulainen; Roger Oliva; Josep Closa; François Cabot; Rita Castro; José Barbosa; Antonio Gutierrez; Eric Anterrieu; Joe Tenerelli; et al. (IGARSS, 2012)

PARIS Interferometric Technique proof of concept: Sea surface altimetry measurements. - Antonio Rius; Fran Fabra; Serni Ribo; Juan Carlos Arco; Santi Oliveras; Estel Cardellach; Adriano Camps; Oleguer Nogués-Correig; Juha Kainulainen; Erkka Rouhe; Manuel Martín-Neira (IGARSS, 2012)

Moisture retrievals of boreal forest soil using HUT-2D synthetic aperture radiometer. - Jaakko Seppänen; Juha Kainulainen; Martti Hallikainen (IGARSS, 2012)

Radiometric Performance of the SMOS Reference Radiometers - Assessment After One Year of Operation. - Juha Kainulainen; Andreas Colliander; Josep Closa; Manuel Martín-Neira; Roger Oliva; Guillermo Buenadicha; Pilar Rubiales Alcaine; Anssi Hakkarainen; Martti T. Hallikainen (IEEE Trans. Geosci. Remote. Sens., 2012)

L-Band Radiometer Observations of Soil Processes in Boreal and Subarctic Environments. - Kimmo Rautiainen; Juha Lemmetyinen; Jouni Pulliainen; Juho Vehvilainen; Matthias Drusch; Anna Kontu; Juha Kainulainen; Jaakko Seppänen (IEEE Trans. Geosci. Remote. Sens., 2012)

The SMOS Validation Campaign 2010 in the Upper Danube Catchment: A Data Set for Studies of Soil Moisture, Brightness Temperature, and Their Spatial Variability Over a Heterogeneous Land Surface. - Johanna T. Dall'Amico; Florian Schlenz; Alexander Loew; Wolfram Mauser; Juha Kainulainen; Jan E. Balling; Catherine Bouzinac (IEEE Trans. Geosci. Remote. Sens., 2013)

Brightness Temperature and Soil Moisture Validation at Different Scales During the SMOS Validation Campaign in the Rur and Erft Catchments, Germany. - Carsten Montzka; Heye Bogena; Lutz Weihermüller; François Jonard; Catherine Bouzinac; Juha Kainulainen; Jan E. Balling; Alexander Loew; Johanna T. Dall'Amico; Erkka Rouhe; Jan Vanderborght; Harry Vereecken (IEEE Trans. Geosci. Remote. Sens., 2013)

SMOS Calibration and Instrument Performance After One Year in Orbit. - Roger Oliva; Manuel Martín-Neira; Ignasi Corbella; Francesc Torres 002; Juha Kainulainen; Joseph Tenerelli; François Cabot; Fernando Martín-Porqueras (IEEE Trans. Geosci. Remote. Sens., 2013)

Brightness temperature behavior of snow on lake ice over a wide frequency range. - Martti Hallikainen; Matti Vaaja; Jaakko Seppänen; Anssi Hakkarainen; Juha Kainulainen (IGARSS, 2014)

Consolidating the Precision of Interferometric GNSS-R Ocean Altimetry Using Airborne Experimental Data. - Estel Cardellach; Antonio Rius; Manuel Martín-Neira; Fran Fabra; Oleguer Nogués-Correig; Serni Ribo; Juha Kainulainen; Adriano Camps; Salvatore D'Addio (IEEE Trans. Geosci. Remote. Sens., 2014)

Assessing Long-Term Stability of SMOS Zero-Baseline Antenna Temperature Using the Aquarius Antenna Temperature Simulator. - Andreas Colliander; Emmanuel P. Dinnat; David M. Le Vine; Chun-Sik Chae; Juha Kainulainen (IEEE Geosci. Remote. Sens. Lett., 2015)

SMOS instrument performance and calibration after 6 years in orbit. - Manuel Martín-Neira; Roger Oliva; Ignasi Corbella; Francesc Torres 002; Nuria Duffo; Israel Durán 001; Juha Kainulainen; Josep Closa; Alberto Zurita; François Cabot; Ali Khazaal; Eric Anterrieu; et al. (IGARSS, 2016)

Measurements of Boreal Coniferous Forest Soil and Humus With an Airborne Radiometer. - Jaakko Seppänen; Juha Kainulainen; Janne Heiskanen; Jaan Praks; Martti Hallikainen (IEEE J. Sel. Top. Appl. Earth Obs. Remote. Sens., 2016)

Lessons learnt from SMOS after 7 years in orbit. - Manuel Martín-Neira; Roger Oliva; Ignasi Corbella; Francesc Torres 002; Nuria Duffo; Israel Durán 001; Juha Kainulainen; Josep Closa; Alberto Zurita; François Cabot; Ali Khazaal; Eric Anterrieu; et al. (IGARSS, 2017)

Data analytics to improve SMOS calibration. - Roger Oliva; Joseph Tenerelli; Manuel Martín-Neira; Ignasi Corbella; Josep Closa; Juha Kainulainen (IGARSS, 2017)

Fully Polarimetric Airborne Wind Vector Scatterometer to Support Space-Borne Gnss-R Measurements. - Juha Kainulainen; Sampo Salo; Janne Lahtinen; Guifré Molera Calvés; Jaakko Seppänen; Jaan Praks; Teemu Hakala; Yuwei Chen; Juha Hyyppä; Martin Unwin; Philip Jales; Gerhard Ressler; et al. (IGARSS, 2018)

Smos Instrument Performance After More Than 8 Years in Orbit and Lessons Learnt for Future L-Band Missions. - Manuel Martín-Neira; Martin Suess; Roger Oliva; Jorge Fauste; Ignasi Corbella; Francesc Torres 002; Nuria Duffo; Israel Durán 001; Juha Kainulainen; Josep Closa; Alberto Zurita; François Cabot; et al. (IGARSS, 2018)

GNSS Transpolar Earth Reflectometry exploriNg System (G-TERN): Mission Concept. - Estel Cardellach; Jens Wickert; Rens Baggen; Javier Benito; Adriano Camps; Nuno Catarino; Bertrand Chapron; Andreas Dielacher; Fran Fabra; Greg Flato; Heinrich Fragner; Carolina Gabarró; et al. (IEEE Access, 2018)

SMOS Instrument Performance after More than 9 Years in Orbit. - Manuel Martín-Neira; François Cabot; Ali Khazaal; Eric Anterrieu; Philippe Richaume; José Barbosa; Goncalo Lopes; Joe Tenerelli; Raúl Díez-García; Jorge Fauste; Antonio Turiel; Roger Oliva; et al. (IGARSS, 2019)

Airborne Wind Vector Scatterometer for Sea Surface Measurements. - Juha Kainulainen; Sampo Salo; Janne Lahtinen; Guifré Molera Calvés; Jaakko Seppänen; Jaan Praks; Teemu Hakala; Yuwei Chen; Juha Hyyppä; Martin Unwin; Philip Jales; Gerhard Ressler; et al. (IEEE J. Sel. Top. Appl. Earth Obs. Remote. Sens., 2019)

SMOS Third Mission Reprocessing after 10 Years in Orbit. - Roger Oliva; Manuel Martín-Neira; Ignasi Corbella; Josep Closa; Alberto Zurita; François Cabot; Ali Khazaal; Philippe Richaume; Juha Kainulainen; José Barbosa; Goncalo Lopes; Joseph Tenerelli; et al. (Remote. Sens., 2020)

SMOS Instrument Performance After More than 11 Years in Orbit. - Manuel Martín-Neira; Roger Oliva; Raul Onrubia; Ignasi Corbella; Nuria Duffo; Roselena Rubino; Juha Kainulainen; Josep Closa; Alberto Zurita; Javier Del Castillo; François Cabot; Ali Khazaal; et al. (IGARSS, 2021)

Demonstration of the Polarimetric Cross-Frequency Algorithm for RFI Detection and Filtering. - Juha Kainulainen; Steen Savstrup Kristensen; Tapio Saarinen; Josu Uusitalo; Sten Schmidl Søbjærg; Manuel Martín-Neira (IGARSS, 2023)