Martti Hallikainen

Juha Kainulainen, Andreas Colliander, Josep Closa, Manuel Martín-Neira, Roger Oliva, Guillermo Buenadicha, Pilar Rubiales Alcaine, Anssi Hakkarainen, Martti T. Hallikainen: Radiometric Performance of the SMOS Reference Radiometers - Assessment After One Year of Operation. IEEE T. Geoscience and Remote Sensing 50(5-1): 1367-1383 (2012)

Jaan Praks, Oleg Antropov, Martti T. Hallikainen: LIDAR-Aided SAR Interferometry Studies in Boreal Forest: Scattering Phase Center and Extinction Coefficient at X- and L-Band. IEEE T. Geoscience and Remote Sensing 50(10): 3831-3843 (2012)

Martti Hallikainen, Matti Vaaja, Annakaisa von Lerber, Juha Kainulainen, Jaakko Seppänen, Juha Lemmetyinen: Multifrequency microwave radiometer measurements of snow on lake ice. IGARSS 2012: 142-145

Jaakko Seppänen, Juha Kainulainen, Martti Hallikainen: Moisture retrievals of boreal forest soil using HUT-2D synthetic aperture radiometer. IGARSS 2012: 1220-1222

Jaan Praks, Martti Hallikainen, Oleg Antropov, Daniel Molina: Boreal forest tree height estimation from interferometric TanDEM-X images. IGARSS 2012: 1262-1265

Annakaisa von Lerber, Marko Mäkynen, Markku Similä, Pauli Sievinen, Martti T. Hallikainen: Thin sea ice identification in the Kara Sea using AMSR-E data. IGARSS 2012: 4477-4480

Oleg Antropov, Yrjö Rauste, Jaan Praks, Martti Hallikainen, Tuomas Häme: Peatland delineation under forest canopy with polsar data using model based decomposition technique. IGARSS 2012: 4918-4921

Martti Hallikainen, Werner Wiesbeck, R. Keith Raney, Kiyo Tomiyasu, Paolo Pampaloni, Roger Lang, Klaus Seidel, Charles Elachi, Akiro Ishimaru, Wolfgang Keydel, John Reagan: GRS-S Awards Presented at IGARSS 2009. IEEE T. Geoscience and Remote Sensing 49(1-1): 6-13 (2011)

Juha Kainulainen, Kimmo Rautiainen, Juha Lemmetyinen, Jaakko Seppänen, Pauli Sievinen, Matias Takala, Martti T. Hallikainen: Experimental Study on Radiometric Performance of Synthetic Aperture Radiometer HUT-2D - Measurements of Natural Targets. IEEE T. Geoscience and Remote Sensing 49(2): 814-826 (2011)

Juha Kainulainen, Kimmo Rautiainen, Juha Lemmetyinen, Martti T. Hallikainen, Fernando Martín-Porqueras, Manuel Martín-Neira: Detection of a Sea Surface Salinity Gradient Using Data Sets of Airborne Synthetic Aperture Radiometer HUT-2-D and a GNSS-R Instrument. IEEE T. Geoscience and Remote Sensing 49(11): 4561-4571 (2011)

Annakaisa von Lerber, Dmitri Moisseev, Jussi Leinonen, Jani Tyynela, V. Chandrasekar, Martti T. Hallikainen: Modeling melting layer radar observations at GPM frequencies; comparison to measurements. IGARSS 2011: 2507-2510

Jaakko Seppänen, Juha Kainulainen, Martti Hallikainen, Juha Lemmetyinen, Kimmo Rautiainen: Synthetic aperture radiometer measurements of freezing soil. IGARSS 2011: 2602-2604

Juha Kainulainen, Kimmo Rautiainen, Martti T. Hallikainen: Lessons learned from HUT-2D L-band airborne demonstrator. IGARSS 2011: 3499-3502

Martti T. Hallikainen, Pauli Sievinen, Jaakko Seppänen, Matti Vaaja, Annakaisa von Lerber, Erkka Rouhe, Juha Lemmetyinen: Microwave emission signature of snow-covered lake ice. IGARSS 2011: 3507-3509

Jaan Praks, Antti Kestila, Martti Hallikainen, Heikki Saari, Jarkko Antila, Pekka Janhunen, Rami Vainio: Aalto-1 - An experimental nanosatellite for hyperspectral remote sensing. IGARSS 2011: 4367-4370

Juha Kainulainen, Kimmo Rautiainen, Pauli Sievinen, Jaakko Seppänen, Erkka Rouhe, Martti Hallikainen, Johanna T. Dall'Amico, Florian Schlenz, Alexander Loew, Alexander Bircher, Carsten Montzka: SMOS calibration and validation activities with airborne interferometric radiometer HUT-2D during spring 2010. IGARSS 2010: 702-705

Jaan Praks, Martti Hallikainen, Elise Colin Koeniguer: Polarimetric sar image visualization and interpretation with covariance matrix invariants. IGARSS 2010: 2035-2038

Annakaisa von Lerber, Timo Piepponen, Jarkko Koskinen, Dmitri Moisseev, Dmitri Kestilä, Jani Tyynela, Timo Nousiainen, Jarmo Koistinen, Ari Sihvola, Pasi Ylä-Oijala, Jaan Praks, Martti Hallikainen, Jouni Pulliainen: Modeling attenuation of melting hydrometeors with a method based on volume integral equations. IGARSS 2010: 2355-2358

Martti Hallikainen, Juha Kainulainen, Jaakko Seppänen, Anssi Hakkarainen, Kimmo Rautiainen: Studies of radio frequency interference at L-band using an airborne 2-D interferometric radiometer. IGARSS 2010: 2490-2491

Kari Luojus, Jouni Pulliainen, Sari Metsämäki, Martti T. Hallikainen: Enhanced SAR-Based Snow-Covered Area Estimation Method for Boreal Forest Zone. IEEE T. Geoscience and Remote Sensing 47(3): 922-935 (2009)

Juha Lemmetyinen, Chris Derksen, Jouni Pulliainen, J. Walter Strapp, Peter Toose, Anne E. Walker, Simo Tauriainen, Jörgen Pihlflyckt, Juha-Petri Kärnä, Martti T. Hallikainen: A Comparison of Airborne Microwave Brightness Temperatures and Snowpack Properties Across the Boreal Forests of Finland and Western Canada. IEEE T. Geoscience and Remote Sensing 47(3): 965-978 (2009)

Jaan Praks, Elise Colin Koeniguer, Martti T. Hallikainen: Alternatives to Target Entropy and Alpha Angle in SAR Polarimetry. IEEE T. Geoscience and Remote Sensing 47(7-2): 2262-2274 (2009)

Martti Hallikainen, Werner Wiesbeck, R. Keith Raney, Kiyo Tomiyasu, Yoshio Yamaguchi, Roger Lang, Klaus Seidel: GRS-S Awards Presented at IGARSS 2008. IEEE T. Geoscience and Remote Sensing 47(11): 3598-3606 (2009)

Juha Karvonen, Martti Hallikainen: Sea Ice SAR Classification based on Edge Features. IGARSS (3) 2009: 129-132

Martti Hallikainen, Juha Lemmetyinen, Pauli Sievinen: Experimental and Modeling Studies of Microwave Remote Sensing of Seasonal Snow. IGARSS (2) 2009: 156-157

Jaakko Seppänen, Juha Kainulainen, Juha Lemmetyinen, Kimmo Rautiainen, Martti Hallikainen, Marko Mäkynen: Soil Moisture Retrieval from HUT-2D Synthetic Aperture Radiometer Data. IGARSS (3) 2009: 298-301

Jaan Praks, Martti Hallikainen, Juha Hyyppä, Jaakko Seppänen: Boreal Forest Height Estimation with SAR Interferometry and Laser Measurements. IGARSS (5) 2009: 308-311

Yubao Qiu, Jiancheng Shi, Juha Lemmetyinen, Anna Kontu, Jouni Pulliainen, Huadong Guo, James R. Wang, Lingmei Jiang, Martti Hallikainen, Li Zhang: The Atmosphere Influence to AMSR-E Measurements over Snow-covered Areas: Simulation and Experiments. IGARSS (2) 2009: 610-613

Juha Kainulainen, Kimmo Rautiainen, Juha Lemmetyinen, Martti Hallikainen, Fernando Martín-Porqueras, Manuel Martín-Neira: Sea Surface Salinity Retrieval Demonstration using Datasets of Synthetic Aperture Radiometer HUT-2D. IGARSS (3) 2009: 737-740

Juha Lemmetyinen, Anna Kontu, Yubao Qiu, Jouni Pulliainen, Martti Hallikainen: Experimental Validation Activities of HUT Snow Emission Model. IGARSS (2) 2009: 871-874

Pauli Sievinen, Jaan Praks, Jarkko Koskinen, Martti Hallikainen, Jaakko Kukkonen, Antti Hellsten: Urban Morphology Retrieval Bymeansofremote Sensing for the Modelling of Atmospheric Dispersion and Micro-meteorology. IGARSS (3) 2009: 877-880

Kimmo Rautiainen, Juha Kainulainen, Tuomo Auer, Jörgen Pihlflyckt, Jani Kettunen, Martti Hallikainen: Helsinki University of Technology L-Band Airborne Synthetic Aperture Radiometer. IEEE T. Geoscience and Remote Sensing 46(3): 717-726 (2008)

Juha Karvonen, Bin Cheng, Markku Similä, Martti Hallikainen: Baltic Sea Ice Thickness Charts based on Thermodynamic Snow/Ice Model, C-band SAR Classification and Ice Motion Detection. IGARSS (4) 2008: 173-176

Kari Luojus, Jouni Pulliainen, Sari Metsämäki, Guifre Molera, Risto Nakari, Juha-Petri Kärnä, Martti Hallikainen: Development of SAR-Based Snow-Covered Area Estimation Method for Borel Forest Zone. IGARSS (3) 2008: 214-217

Martti Hallikainen, Panu Lahtinen, Timo Piepponen, Lauri Honkavaara, Aleksis Schäfer: Results from Microwave Radiometer Campaign of Seasonal Snow and Comparison with Emission Models. IGARSS (3) 2008: 402-402

Jaan Praks, Florian Kugler, Juha Hyyppä, Konstantinos Papathanassiou, Martti Hallikainen: SAR Coherence Tomography for Boreal Forest with Aid of Laser Measurements. IGARSS (2) 2008: 469-472

Marko Mäkynen, Martti Hallikainen: Simulation of ASIRAS Multilooked Echoes for Snow Covered Sea Ice. IGARSS (4) 2008: 506-509

Yubao Qiu, Jiancheng Shi, Martti Hallikainen, Juha Lemmetyinen, Jouni Pulliainen, Jarkko Koskinen, Anna Kontu: The AMSR-E Instantaneous Emissivity Estimation and its Correlation, Frequency Dependency Analysis over Different Land Covers. IGARSS (2) 2008: 749-752

Anna Kontu, Sami Kemppainen, Juha Lemmetyinen, Jouni Pulliainen, Martti Hallikainen: Determination of Snow Emission on Lake Ice from Airborne Passive Microwave Measurements. IGARSS (4) 2008: 1046-1049

Markku Similä, Marko Mäkynen, Istvan Heiler, Martti Hallikainen: Comparison Between Envisat SAR and 3-D Laser Scanner Statistics for the Baltic Sea Ice. IGARSS (4) 2008: 1097-1100

Kari Luojus, Jouni Pulliainen, Sari Metsämäki, Martti T. Hallikainen: Snow-Covered Area Estimation Using Satellite Radar Wide-Swath Images. IEEE T. Geoscience and Remote Sensing 45(4): 978-989 (2007)

Marko Mäkynen, Bin Cheng, Markku Similä, Timo Vihma, Martti T. Hallikainen: Comparisons Between SAR Backscattering Coefficient and Results of a Thermodynamic Snow/Ice Model for the Baltic Sea Land-Fast Sea Ice. IEEE T. Geoscience and Remote Sensing 45(5-1): 1131-1141 (2007)

Andreas Colliander, Lasse Ruokokoski, Jani Suomela, Katriina Veijola, Jani Kettunen, Ville Kangas, Aleksi Aalto, Mikael Levander, Heli Greus, Martti T. Hallikainen, Janne Lahtinen: Development and Calibration of SMOS Reference Radiometer. IEEE T. Geoscience and Remote Sensing 45(7-1): 1967-1977 (2007)

Andreas Colliander, Janne Lahtinen, Simo Tauriainen, Jörgen Pihlflyckt, Juha Lemmetyinen, Martti T. Hallikainen: Sensitivity of Airborne 36.5-GHz Polarimetric Radiometer's Wind-Speed Measurement to Incidence Angle. IEEE T. Geoscience and Remote Sensing 45(7-1): 2122-2129 (2007)

Juha Lemmetyinen, Josu Uusitalo, Juha Kainulainen, Kimmo Rautiainen, Nestori Fabritius, Mikael Levander, Ville Kangas, Heli Greus, Jörgen Pihlflyckt, Anna Kontu, Sami Kemppainen, Andreas Colliander, Martti T. Hallikainen, Janne Lahtinen: SMOS Calibration Subsystem. IEEE T. Geoscience and Remote Sensing 45(11-2): 3691-3700 (2007)

Juha Kainulainen, Kimmo Rautiainen, Martti Hallikainen, Matias Takala: Radiometric performance of interferometric synthetic aperture radiometer HUT-2D. IGARSS 2007: 243-246

Jaan Praks, Martti Hallikainen, Florian Kugler, Konstantinos P. Papathanassiou: X-band extinction in boreal forest: Estimation by using E-SAR POLInSAR and HUTSCAT. IGARSS 2007: 1128-1131

Martti Hallikainen, Pauli Sievinen, Yuanzhi Zhang, Pekka Halme: Use of quikscat ku-band scatterometer data for retrieval of seasonal snow characteristics in Finland. IGARSS 2007: 1228

Juha-Petri Kärnä, Juha Lemmetyinen, Martti Hallikainen, Panu Lahtinen, Jouni Pulliainen, Matias Takala: Operational snow map production for whole eurasia using microwave radiometer and ground-based observations. IGARSS 2007: 1456-1459

Andreas Colliander, Juha Lemmetyinen, Josu Uusitalo, Jani Suomela, Katriina Veijola, Anna Kontu, Sami Kemppainen, Jörgen Pihlflyckt, Kimmo Rautiainen, Martti Hallikainen, Janne Lahtinen: Ground calibration of SMOS: NIR and CAS. IGARSS 2007: 3631-3634

Kimmo Rautiainen, Juha Kainulainen, Tuomo Auer, Simo Tauriainen, Martti Hallikainen: Helsinki University of Technology Synthetic Aperture Radiometer -HUT-2D. IGARSS 2007: 3635-3638

Marko Mäkynen, Bin Cheng, Markku Similä, Timo Vihma, Martti Hallikainen: Interpretation of C-band SAR backscattering coefficient time series for the Baltic Sea landfast sea ice using a 1-D thermodynamic snow/ice model. IGARSS 2007: 3983-3986

Kari Luojus, Jouni Pulliainen, Sari Metsämäki, Saku Anttila, Martti Hallikainen: Assimilating spaceborne radar and ground-based weather station data for operational snow-covered area estimation. IGARSS 2007: 4202-4205

Sami Kemppainen, Juha Lemmetyinen, Tuomo Auer, Andreas Colliander, Aleksi Aalto, Kimmo Rautiainen, Martti Hallikainen: Thermal stabilized front-end PCB with active cold calibration load for L-band radiometer. IGARSS 2007: 4433-4436

Kari Luojus, Jouni Pulliainen, Sari Metsämäki, Martti T. Hallikainen: Accuracy assessment of SAR data-based snow-covered area estimation method. IEEE T. Geoscience and Remote Sensing 44(2): 277-287 (2006)

Andreas Colliander, Jani Kettunen, Martti T. Hallikainen: Calibration of End-to-End Phase Imbalance of Polarimetric Radiometers. IEEE T. Geoscience and Remote Sensing 44(10-1): 2635-2641 (2006)

Marko Mäkynen, Markku Similä, A. Terhikki Manninen, Martti T. Hallikainen, Juha A. Karvonen: Dependence between standard deviation and measurement length for C-band backscattering signatures of the Baltic Sea ice. IEEE T. Geoscience and Remote Sensing 44(10-2): 2890-2898 (2006)

Chris Derksen, J. Walter Strapp, Anne E. Walker, Juha Lemmetyinen, Martti Hallikainen, Jouni Pulliainen: A Comparison of Airborne Passive Microwave Brightness Temperatures and Snowpack Properties across the Boreal Forests of Finland and Western Canada. IGARSS 2006: 694-697

Markku Similä, Juha Karvonen, Christian Haas, Martti Hallikainen: C-Band SAR Based Estimation of Baltic Sea Ice Thickness Distributions. IGARSS 2006: 710-713

Jouni Pulliainen, Juha-Petri Kärnä, Martti Hallikainen, Kari Luojus, Sari Metsämäki, Markus Huttunen, Saku Anttila: Mapping of Snow Water Equivalent and Snow Coverage from Combined EO and in situ Data for Climatic Studies and Hydrological Forecasting Models. IGARSS 2006: 1709-1712

Nazzareno Pierdicca, Frank Silvio Marzano, Martti T. Hallikainen, Paolo Pampaloni, Ed R. Westwater: Foreword to the Special Issue on the 8th Specialist Meeting on Microwave Radiometry and Remote Sensing Applications (MicroRad04). IEEE T. Geoscience and Remote Sensing 43(5): 919-923 (2005)

Andreas Colliander, Simo Tauriainen, Tuomo Auer, Juha Kainulainen, Josu Uusitalo, Martti Toikka, Martti T. Hallikainen: MIRAS reference radiometer: a fully polarimetric noise injection radiometer. IEEE T. Geoscience and Remote Sensing 43(5): 1135-1143 (2005)

Ali Nadir Arslan, Martti T. Hallikainen, Jouni Pulliainen: Investigating of snow wetness parameter using a two-phase backscattering model. IEEE T. Geoscience and Remote Sensing 43(8): 1827-1833 (2005)

Kari Luojus, Jouni Pulliainen, Sari Metsämäki, Martti Hallikainen: Snow covered area estimation using satellite radar wide swath images. IGARSS 2005: 4

Martti Hallikainen, Panu Lahtinen, Yuanzhi Zhang, Matias Takala, Jouni Pulliainen: Feasibility of satellite Ku-band scatterometer data for retrieval of seasonal snow characteristics in Finland. IGARSS 2005: 1936-1939

Jouni Pulliainen, Martti Hallikainen, Saku Anttila, Sari Metsämäki: Estimation of snow water equivalent and snow depth in boreal forests by assimilating AMSR-E observations with in situ observations. IGARSS 2005: 2641-2644

Pekka Ahtonen, Martti Hallikainen: Automatic detection of water bodies from spaceborne SAR images. IGARSS 2005: 3845-3848

Markku Similä, Juha Karvonen, Martti Hallikainen, Christian Haas: On SAR-based statistical ice thickness estimation in the baltic sea. IGARSS 2005: 4030-4033

Miia Eskelinen, Jouni Pulliainen, Martti Hallikainen: Spectrometer-derived variability for snow covered forest reflectances in the melting period. IGARSS 2005: 5448-5451

Andreas Colliander, Jani Suomela, Lasse Ruokokoski, Ville Kangas, Aleksi Aalto, Janne Lahtinen, Martti Hallikainen: Temperature variation compensation in engineering model of MIRAS reference radiometer. IGARSS 2005: 5558-5561

Janne Lahtinen, Martti T. Hallikainen: HUT fully polarimetric calibration standard for microwave radiometry. IEEE T. Geoscience and Remote Sensing 41(3): 603-611 (2003)

Yuanzhi Zhang, Jouni Pulliainen, Sampsa S. Koponen, Martti T. Hallikainen: Water quality retrievals from combined Landsat TM data and ERS-2 SAR data in the Gulf of Finland. IEEE T. Geoscience and Remote Sensing 41(3): 622-629 (2003)

Janne Lahtinen, Jörgen Pihlflyckt, Ilkka Mononen, Simo Tauriainen, Martti Kemppinen, Martti T. Hallikainen: Fully polarimetric microwave radiometer for remote sensing. IEEE T. Geoscience and Remote Sensing 41(8): 1869-1878 (2003)

Marko Mäkynen, A. Terhikki Manninen, Markku Similä, Juha A. Karvonen, Martti T. Hallikainen: Incidence angle dependence of the statistical properties of C-band HH-polarization backscattering signatures of the Baltic Sea ice. IEEE T. Geoscience and Remote Sensing 40(12): 2593-2605 (2002)

Olli Koistinen, Janne Lahtinen, Martti T. Hallikainen: Comparison of analog continuum correlators for remote sensing and radio astronomy. IEEE T. Instrumentation and Measurement 51(2): 227-234 (2002)

Jarkko Koskinen, Jouni Pulliainen, Juha Hyyppä, Marcus E. Engdahl, Martti T. Hallikainen: The seasonal behavior of interferometric coherence in boreal forest. IEEE T. Geoscience and Remote Sensing 39(4): 820-829 (2001)

Markku Similä, Elja Arjas, Marko Mäkynen, Martti T. Hallikainen: A Bayesian classification model for sea ice roughness from scatterometer data. IEEE T. Geoscience and Remote Sensing 39(7): 1586-1595 (2001)

Jean-Michel Martinez, Nicolas Floury, Thuy Le Toan, André Beaudoin, Martti T. Hallikainen, Marko Mäkynen: Measurements and modeling of vertical backscatter distribution in forest canopy. IEEE T. Geoscience and Remote Sensing 38(2): 710-719 (2000)

Tazio Strozzi, Patrik B. G. Dammert, Urs Wegmüller, Jean-Michel Martinez, Jan I. H. Askne, André Beaudoin, Martti Hallikainen: Landuse mapping with ERS SAR interferometry. IEEE T. Geoscience and Remote Sensing 38(2): 766-775 (2000)

Lauri Kurvonen, Jouni Pulliainen, Martti Hallikainen: Retrieval of biomass in boreal forests from multitemporal ERS-1 and JERS-1 SAR images. IEEE T. Geoscience and Remote Sensing 37(1): 198-205 (1999)

J. Grandell, Johnny A. Johannessen, Martti T. Hallikainen: Development of a synergetic sea ice retrieval method for the ERS-1 AMI wind scatterometer and SSM/I radiometer. IEEE T. Geoscience and Remote Sensing 37(2): 668-679 (1999)

Lauri Kurvonen, Martti T. Hallikainen: Textural information of multitemporal ERS-1 and JERS-1 SAR images with applications to land and forest type classification in boreal zone. IEEE T. Geoscience and Remote Sensing 37(2): 680-689 (1999)

Jouni Pulliainen, Lauri Kurvonen, Martti T. Hallikainen: Multitemporal behavior of L- and C-band SAR observations of boreal forests. IEEE T. Geoscience and Remote Sensing 37(2): 927-937 (1999)

Jouni Pulliainen, Jochen Grandell, Martti T. Hallikainen: HUT snow emission model and its applicability to snow water equivalent retrieval. IEEE T. Geoscience and Remote Sensing 37(3): 1378-1390 (1999)

Jarkko Koskinen, Jouni Pulliainen, Marko Mäkynen, Martti T. Hallikainen: Seasonal comparison of HUTSCAT ranging scatterometer and ERS-1 SAR microwave signatures of boreal forest zone. IEEE T. Geoscience and Remote Sensing 37(4): 2068-2079 (1999)

Nerijus Kruopis, Jaan Praks, Ali Nadir Arslan, Hanna M. Alasalmi, Jarkko Koskinen, Martti T. Hallikainen: Passive microwave measurements of snow-covered forest areas in EMAC'95. IEEE T. Geoscience and Remote Sensing 37(6): 2699-2705 (1999)