Lars Ulander

Professor at Chalmers, Space, Earth and Environment, Microwave and Optical Remote Sensing

Lars Ulander is professor in radar remote sensing as well as research director at the Swedish Defence Research Agency (FOI). His research is focused on radar systems, in particular signal and data processing for synthetic aperture radar (SAR) in different applications. His research has resulted in new radar systems and new knowledge about SAR and ground imaging in the VHF and UHF bands. He is one of the proposers for the BIOMASS satellite mission which is under development by the European Space Agency (ESA). The objective of BIOMASS is to produces yearly global maps of forest biomass. It will be the first SAR satellite operating in the UHF-band (432-438 MHz) and launch is scheduled 2020.

Source: chalmers.se

Projects

2012–2013

3D Forest Parameter Retrival from Tandem-X Interferometry

Lars Ulander Radar Remote Sensing
Leif Eriksson Radar Remote Sensing
Maciej Soja Radar Remote Sensing
Swedish National Space Board

2011–2013

Measurements of sea surface currents to benefit Swedish GMES marine core services

Leif Eriksson Radar Remote Sensing
Gisela Carvajal Radar Remote Sensing
Lars Ulander Microwave and Optical Remote Sensing
Swedish National Space Board

2014–2014

Using satellite data and coastal HF radar to map and validate sea surface currents and to detect ships in Skagerrak (SaRaCuS)

Leif Eriksson Radar Remote Sensing
Gisela Carvajal Radar Remote Sensing
Monika Wozniak Radar Remote Sensing
Lars Ulander Microwave and Optical Remote Sensing
Swedish National Space Board

2014–2016

Radar remote sensing of sea ice in the Polar regions

Leif Eriksson Radar Remote Sensing
Wiebke Aldenhoff Radar Remote Sensing
Lars Ulander Microwave and Optical Remote Sensing
Anders Berg Radar Remote Sensing
Céline Heuzé Radar Remote Sensing
Swedish National Space Board

2013–2015

Retrieval of wind with spaceborne SAR for polar oceans and coastal regions

Leif Eriksson Radar Remote Sensing
Lars Ulander Radar Remote Sensing
Gisela Carvajal Radar Remote Sensing
Swedish National Space Board

2015–2019

Understanding ocean surface dynamics with satelite data

Leif Eriksson Radar Remote Sensing
Lars Ulander Radar Remote Sensing
Gisela Carvajal Radar Remote Sensing
Anis Elyouncha Microwave and Optical Remote Sensing
Monika Wozniak Radar Remote Sensing
Céline Heuzé Radar Remote Sensing
Swedish National Space Board

2015–2020

Tower for Time Series Analysis of Radar Measurements

Lars Ulander Radar Remote Sensing
Wingquists stiftelse

2016–2021

Weather Station for Time Series Analysis of Radar Scattering from Forests

Lars Ulander Radar Remote Sensing
Wingquists stiftelse

2014–2015

TangoSat – Study of L- and P-band SAR Tomography Synergies

Lars Ulander Radar Remote Sensing
European Space Agency (ESA)

2014–2014

3D Forest Parameter Retrieval from TanDEM-X Interferometry

Lars Ulander Radar Remote Sensing
Leif Eriksson Radar Remote Sensing
Swedish National Space Board

2015–2016

Retrival of forest biomass and biomass change with spaceborn SAR

Lars Ulander Radar Remote Sensing
Maciej Soja Radar Remote Sensing
Erik Blomberg Radar Remote Sensing
Leif Eriksson Radar Remote Sensing
Swedish National Space Board

2012–2013

Developing and evaluating biomass retrieval algorithms for the candidate Earth Explorer mission BIOMASS

Lars Ulander Radar Remote Sensing
Gustaf Sandberg Radar Remote Sensing
Maciej Soja Radar Remote Sensing
Swedish National Space Board

2013–2014

Retrieval of forest biomass and biomass change with spaceborne SAR

Lars Ulander Radar Remote Sensing
Swedish National Space Board

2016–2017

C-band Convoy Satellite Campaign

Lars Ulander Radar Remote Sensing
European Space Agency (ESA)
ESTEC

There might be more projects where Lars Ulander participates, but you have to be logged in as a Chalmers employee to see them.

Publications

2017

Estimation of Boreal Forest Properties From TanDEM-X Data Using Inversion of the Interferometric Water Cloud Model

Maciej Soja, Jan Askne, Lars Ulander
IEEE Geoscience and Remote Sensing Letters. Vol. 14 (7), p. 997-1001
Journal article
2017

Biomass estimation in a boreal forest from TanDEM-X data, lidar DTM, and the interferometric water cloud model

Lars Ulander, Maciej Soja, Jan Askne
Remote Sensing of Environment. Vol. 196, p. 265-278
Journal article
2017

Estimation of Boreal Forest Properties From TanDEM-X Data Using Inversion of the Interferometric Water Cloud Model

Maciej Soja, Jan Askne, Lars Ulander
IEEE Geoscience and Remote Sensing Letters. Vol. 14 (7), p. 997-1001
Journal article
2017

Analysis of a ground target deployment in an airborne passive SAR experiment

A. Haglund, R. Ragnarsson, P.O. Frolind et al
2017 IEEE Radar Conference, RadarConf 2017, p. 0273-0278
Paper in proceedings
2017

Biomass estimation in a boreal forest from TanDEM-X data, lidar DTM, and the interferometric water cloud model

Lars Ulander, Jan Askne, Maciej Soja
Remote Sensing of Environment. Vol. 196, p. 265-278
Journal article
2016

Mapping Topography and Forest Parameters in a Boreal Forest with Dual-Baseline TanDEM-X Data and the Two-Level Model

Lars Ulander, Maciej Soja
11th European Conference on Synthetic Aperture Radar (EUSAR)
Paper in proceedings
2016

Borealscat: A tower experiment for understanding temporal changes in P- and L-band backscattering from a Boreal forest

J. E. S. Fransson, Lars Ulander, Albert Monteith et al
European Space Agency, (Special Publication). Living Planet Symposium 2016, Prague, Czech Republic, 9-13 May 2016. Vol. 740
Paper in proceedings
2016

Simulated biomass retrieval from the spaceborne tomographic Saocom-CS mission at L-band

Maciej Soja, Lars Ulander, S. Tebaldini et al
European Space Agency, (Special Publication). Living Planet Symposium 2016, Prague, Czech Republic, 9-13 May 2016. Vol. 740
Paper in proceedings
2016

Estimation of Forest Stem Volume using ALOS-2 PALSAR-2 Satellite Images

Johan Fransson, J. Wallerman, Leif Eriksson et al
Proceedings of 36th IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2016; Beijing; China; 10-15 July 2016. Vol. 2016-November, p. Art no 7730388, Pages 5327-5330
Paper in proceedings
2016

An Efficient Solution to the Factorized Geometrical Autofocus Problem

Hans Hellsten, Patrik Dammert, Jan Torgrimsson et al
IEEE Transactions on Geoscience and Remote Sensing. Vol. 54 (8), p. 4732-4748
Journal article
2016

Factorized Geometrical Autofocus On the geometry search

P. Dammert, Jan Torgrimsson, Lars Ulander et al
IEEE Radar Conference (RadarConf), Philadelphia, PA, USA, May 02-06, 2016, p. 293-297
Paper in proceedings
2016

Wind-wave effect on ATI-SAR measurements of ocean surface currents in the Baltic Sea

Leif Eriksson, Lars Ulander, Gisela Carvajal et al
36th IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2016; Beijing; China; 10-15 July 2016. Vol. 2016-November, p. 3982-3985
Paper in proceedings
2016

BorealScat: A Tower-Based Tomographic and Polarimetric Radar Experiment in the Boreal Forest at P- and L-Band

Maciej Soja, Albert Monteith, Leif Eriksson et al
Proceedings of IEEE International Geoscience and Remote Sensing Symposium. 10-15 July 2016, p. 7458 - 7461
Paper in proceedings
2015

Detection of Forest Change and Robust Estimation of Forest Height from Two-Level Model Inversion of Multi-Temporal Single-Pass InSAR Data

Lars Ulander, H. Persson, Maciej Soja
IEEE International Geoscience and Remote Sensing Symposium, p. 3886-3889
Paper in proceedings
2015

Mono- and Bistatic UHF-Band SAR Measurements of a Hemi-Boreal Forest

Johan Fransson, Lars Ulander, Erik Blomberg et al
IEEE International Geoscience and Remote Sensing Symposium, p. 5079-5082
Paper in proceedings
2015

A polarimetric model of topographic effects on P-band forest backscatter

Lars Ulander, Maciej Soja, Erik Blomberg
Paper in proceedings
2015

Detection of Thinning and Clear-Cuts using TanDEM-X Data

Henrik Persson, Maciej Soja, Lars Ulander et al
IEEE International Geoscience and Remote Sensing Symposium, p. 2907-2910
Paper in proceedings
2015

A polarimetric model of topographic effects on P-band forest backscatter

Erik Blomberg, Maciej Soja, Lars Ulander
Paper in proceedings
2015

Forest Biomass Retrieval from BioSAR 2010 P-band SAR Data using a Regression-Based Model

Maciej Soja, Lars Ulander, Erik Blomberg
IEEE International Geoscience and Remote Sensing Symposium, p. 4193-4195
Paper in proceedings
2015

VHF/UHF bistatic and passive SAR ground imaging

A. Gustavsson, P.O. Frolind, R. Ragnarsson et al
IEEE National Radar Conference - Proceedings. Vol. 2015-June (June), p. 669-673
Paper in proceedings
2015

Estimation of Forest Biomass From Two-Level Model Inversion of Single-Pass InSAR Data

Lars Ulander, H. Persson, Maciej Soja
IEEE Transactions on Geoscience and Remote Sensing. Vol. 53 (9), p. 5083-5099
Journal article
2015

Estimation of Forest Height and Canopy Density From a Single InSAR Correlation Coefficient

Maciej Soja, H. Persson, Lars Ulander
IEEE Geoscience and Remote Sensing Letters. Vol. 12 (3), p. 646-650
Journal article
2014

Measurements of Forest Biomass Change Using P-Band Synthetic Aperture Radar Backscatter

J. Wallerman, Gustaf Sandberg, Lars Ulander et al
IEEE Transactions on Geoscience and Remote Sensing. Vol. 52 (10), p. 6047-6061
Journal article
2014

Suppression of Clutter in Multichannel SAR GMTI

T.K. Sjögren, Lars Ulander, V.T. Vu et al
IEEE Transactions on Geoscience and Remote Sensing. Vol. 52 (7), p. 4005-4013
Journal article
2014

Impulse response function for ultra-wideband SAR

Lars Ulander
European Conference on Synthetic Aperture Radar (EUSAR), Berlin, Germany, 3-5 June 2014, p. 798-801
Paper in proceedings
2014

Factorized Geometrical Autofocus for Synthetic Aperture Radar Processing

Lars Ulander, P. Dammert, H. Hellsten et al
IEEE Transactions on Geoscience and Remote Sensing. Vol. 52 (10), p. 6674-6687
Journal article
2014

Polarimetric-interferometric boreal forest scattering model for BIOMASS end-to-end simulator

Maciej Soja, Lars Ulander
Joint 2014 IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2014 and the 35th Canadian Symposium on Remote Sensing, CSRS 2014; Quebec Convention CentreQuebec City; Canada; 13 July 2014 through 18 July 2014, p. 1061-1064
Paper in proceedings
2014

Estimation of Boreal Forest Biomass from Two-Level Model Inversion of Interfermetric TanDEM-X Data

H. Persson, Maciej Soja, Lars Ulander
Joint 2014 IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2014 and the 35th Canadian Symposium on Remote Sensing, CSRS 2014; Quebec Convention CentreQuebec City; Canada; 13 July 2014 through 18 July 2014, p. 3398-3401
Paper in proceedings
2014

P-band Polarimetric Model of Vertical Tree Stems on Sloping Ground

Lars Ulander, Erik Blomberg, Maciej Soja
Joint 2014 IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2014 and the 35th Canadian Symposium on Remote Sensing, CSRS 2014; Quebec Convention CentreQuebec City; Canada; 13 July 2014 through 18 July 2014, p. 80-83
Paper in proceedings
2014

Biomass retrieval from P-band polarimetric and interferometric SAR data, challenges and recent results

Lars Ulander, L. Villard, K Papathanassiou et al
Joint 2014 IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2014 and the 35th Canadian Symposium on Remote Sensing, CSRS 2014; Quebec City; Canada; 13 July 2014 through 18 July 2014, p. 1417-1420
Paper in proceedings
2014

Autofocus and analysis of geometrical errors within the framework of fast factorized back-projection

Patrik Dammert, H. Hellsten, Jan Torgrimsson et al
Journal of Logic and Computation. Vol. 9093, p. Article number 909303-
Paper in proceedings
2014

Retrieval and Quality Assessment of Wind Velocity Vectors on the Ocean With C-Band SAR

Leif Eriksson, Gisela Carvajal, Lars Ulander
IEEE Transactions on Geoscience and Remote Sensing. Vol. 52 (5), p. 2519-2537
Journal article
2014

Two-Level Forest Model Inversion of Interferometric TanDEM-X Data

Maciej Soja, Lars Ulander
10th European Conference on Synthetic Aperture Radar (EUSAR), p. 1137-1140
Paper in proceedings
2013

Estimation of stem volume in hemi-boreal forests using airborne low-frequency Synthetic Aperture Radar and lidar data

J.E.S. Fransson, A. Gustavsson, J. Wallerman et al
International Geoscience and Remote Sensing Symposium (IGARSS), p. 161-164
Paper in proceedings
2013

Digital Canopy Model Estimation from TanDEM-X Interferometry using High-Resolution Lidar DEM

Maciej Soja, Lars Ulander
Proceedings of IEEE Geoscience and Remote Sensing Symposium (IGARSS), 21-26 July 2013, p. 165-168
Paper in proceedings
2013

Modelling of TanDEM-X Measured Forest Height from Small Footprint Lidar Data

Maciej Soja, Lars Ulander
Conference poster
2013

Comparison between current fields detected with infrared radiometry and modeled currents around Sweden

Leif Eriksson, Anders Berg, Gisela Carvajal et al
33rd IEEE International Geoscience and Remote Sensing Symposium (IGARSS); 2013, Melbourne, p. 1270-1273
Paper in proceedings
2013

Correlation between Synthetic Aperture Radar Surface Winds and Deep Water Velocity in the Amundsen Sea, Antarctica

Lars Ulander, Leif Eriksson, Anna Wåhlin et al
Remote Sensing. Vol. 5 (8), p. 4088-4106
Journal article
2013

Regression-Based Retrieval of Boreal Forest Biomass in Sloping Terrain using P-band SAR Backscatter Intensity Data

Gustaf Sandberg, Maciej Soja, Lars Ulander
IEEE Transactions on Geoscience and Remote Sensing. Vol. 51 (5), p. 2646-2665
Journal article
2013

Model-Based Biomass Estimation of a Hemi-Boreal Forest from Multitemporal TanDEM-X Acquisitions

Maurizio Santoro, Lars Ulander, Maciej Soja et al
Remote Sensing. Vol. 5 (11), p. 5574-5597
Journal article
2013

Model-Based Biomass Estimation of a Hemi-Boreal Forest from Multitemporal TanDEM-X Acquisitions

Maciej Soja, Lars Ulander, J. E. S. Fransson et al
Remote Sensing. Vol. 5 (11), p. 5574-5597
Journal article
2012

Boreal Forest Biomass Mapping with P-band SAR Backscatter

Gustaf Sandberg, Lars Ulander, Maciej Soja
Conference poster
2012

Assessing Performance of L- and P-Band Polarimetric Interferometric SAR Data in Estimating Boreal Forest Above-Ground Biomass

J. E. S. Fransson, Lars Ulander, M. Neumann et al
IEEE Transactions on Geoscience and Remote Sensing. Vol. 50 (3), p. 714-726
Journal article
2012

The science and measurement concepts underlying the BIOMASS mission

J. Dall, S. Saatchi, M. Williams et al
Proc. IGARSS 2012, IEEE International Geoscience and Remote Sensing Symposium, Munich, Germany, 22-27 July 2012, p. 5542-5545
Paper in proceedings
2012

Forest biomass and the science of inventory from space

M. Williams, T. LeToan, J. Chave et al
Nature Climate Change. Vol. 2 (12), p. 826-827
Scientific journal article - non peer reviewed
2012

Biomass retrieval of boreal forest for the satellite P-band synthetic-aperture radar BIOMASS

Lars Ulander, Gustaf Sandberg, Maciej Soja
Proc. RVK 2012, Stockholm, Sweden, 6 March 2012, p. 1 page-
Conference contribution
2012

Estimation of forest variables using TanDEM-X data in combination with a high resolution DEM

H. Persson, Santoro Maurizio, Maciej Soja et al
Conference contribution
2012

Measurements of forest change using P-band SAR backscatter

Lars Ulander, Gustaf Sandberg, J. E. S. Fransson et al
Proceedings of IEEE International Geoscience and Remote Sensing Symposium (IGARSS), 22-27 July 2012, Munich, Germany, p. 1652-1655
Paper in proceedings
2012

Evaluation of a geometrical autofocus algorithm within the framework of Fast Factorized Back-Projection

Jan Torgrimsson, Anders Åhlander, Hans Hellsten et al
Proceedings of IET RADAR 2012, 22-25 October, Glasgow, Scotland (603 CP)
Paper in proceedings
2012

The BIOMASS mission retrieval algorithms: Results from recent campaigns

S. Quegan, T. Le Toan, K. Scipal et al
Proc. IGARSS 2012, IEEE International Geoscience and Remote Sensing Symposium, Munich, Germany, 22-27 July 2012, p. 5546-5549
Paper in proceedings
2012

BIOMASS end-to-end mission performance assessment

S. Quegan, Lars Ulander, J.A. García et al
Proc. IGARSS 2012, IEEE International Geoscience and Remote Sensing Symposium, Munich, Germany, 22-27 July 2012, p. 1602-1605
Paper in proceedings
2011

BIOMASS End-to-End performance Simulator

N. Taveneau, M. Younis, S. Quegan et al
IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2011. Vancouver, 24-29 July 2011, p. 4249-4252
Paper in proceedings
2011

BIOSAR 2010 - A SAR campaign in support to the BIOMASS mission

J. Wallerman, Xavier Depuis, Pascale Dubois-Fernandez et al
Proceedings of IGARSS 2011 Symposium, Vancouver, Canada, 24-29 July, 2011, p. 1528-1531
Conference contribution
2011

Impact and modeling of topographic effects on P-band SAR backscatter from boreal forests

Maciej Soja, Lars Ulander, Gustaf Sandberg
Proceedings of IGARSS 2011 Symposium, Vancouver, Canada, 24-29 July, 2011, p. 3522-3525
Conference contribution
2011

L- and P-band backscatter intensity for biomass retrieval in hemiboreal forest

Gustaf Sandberg, Lars Ulander, J. E. S. Fransson et al
Remote Sensing of Environment. Vol. 115 (11), p. 2874 - 2886
Journal article
2011

A Hybrid Model for Polarimetric and Interferometric P-band SAR Modelling of Forests

Maciej Soja, Lars Ulander
Conference contribution
2011

The BIOMASS mission: Mapping global forest biomass to better understand the terrestrial carbon cycle

S. Saatchi, H, Shugart, K. Papathanassiou et al
Remote Sensing of Environment. Vol. 115, p. 2850-2860
Journal article
2011

Statistical Analysis of VHF-Band Tree Backscattering Using Forest Ground Truth Data and PO Scattering Model

Annelie Wyholt, Lars Ulander, Anatoliy Kononov et al
IEEE Transactions on Geoscience and Remote Sensing. Vol. 49 (8), p. 3035-3046
Journal article
2011

Parametric and non-parametric forest biomass estimation from PolInSAR data

M. Neumann, Lars Ulander, S. S. Saatchi et al
IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2011. Vancouver, 24-29 July 2011, p. 420-423
Paper in proceedings
2011

Biomass Retrieval Algorithm Based on P-band BioSAR Experiments of Boreal Forest

Maciej Soja, Lars Ulander, Gustaf Sandberg
IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2011. Vancouver, 24-29 July 2011, p. 4245-4248
Conference contribution
2011

Retrieval and assessment of sub-mesoscalewind velocity vectors with Synthetic Aperture Radar

Lars Ulander, Gisela Carvajal, Leif Eriksson
IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2011. Vancouver, 24-29 July 2011, p. 2041-2044
Paper in proceedings
2010

Detection of Moving Targets by Focusing in UWB SAR-Theory and Experimental Results

A. Gustavsson, Lars Ulander, M. I. Pettersson et al
IEEE Transactions on Geoscience and Remote Sensing. Vol. 48 (10), p. 3799-3815
Journal article
2010

RFI Suppression In Ultrawideband SAR Using Adaptive Line Enhancer

L. Håkansson, V. T. Vu, T. K. Sjögren et al
IEEE Geoscience and Remote Sensing Letters. Vol. 7 (4), p. 694-698
Journal article
2010

Clear-Cut Detection in Swedish Boreal Forest Using Multi-Temporal ALOS PALSAR Backscatter Data

J.E.S. Fransson, Leif Eriksson, Lars Ulander et al
IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing. Vol. 3 (4), p. 618-631
Journal article
2010

Fast Factorized Back-Projection for Bistatic SAR Processing

Lars Ulander, D. Murdin, Per-Olov Frölind et al
Proceedings of European Conference on Synthetic Aperture Radar, Aachen, Germany, 7-10 June 2010, p. 1002-1005
Conference contribution
2010

Design of Optimum Weighting Functions for LFM Signals

Leif Eriksson, Anatoliy Kononov, Lars Ulander
Convergence and Hybrid Information Technologies, Marius Crisan (Ed.), p. 389-412
Chapter in monograph, book
2010

Topographic Correction for Biomass Retrieval from P-band SAR Data in Boreal Forests

Maciej Soja, Gustaf Sandberg, Lars Ulander
Proceedings of IGARSS 2010 Symposium, Remote Sensing: Global Vision for Local Action, Honolulu, Hawaii, USA, 25-30 July, 2010, p. 4776-4779
Conference contribution
2010

K&C Science Report – Phase 1, Detection of deforestation in Swedish forest

M. Santoro, J.E.S. Fransson, Lars Ulander et al
Report
2010

The BIOMASS mission – an ESA Earth Explorer candidate to measure the biomass of the Earth’s forests

T. Le Toan, M. Arcioni, M. Williams et al
Proceedings of the 2010 IEEE International Geoscience and Remote Sensing Symposium, Honolulu, HI, USA, 25-30 July 2010, p. 52-55
Conference contribution
2009

Investigations on forestry applications in Sweden using ALOS PALSAR

Lars Ulander, H. Olsson, M. Magnusson et al
Journal of Logic and Computation. Vol. ESA-SP 664
Conference contribution
2009

Signatures of ALOS PALSAR L-Band Backscatter in Swedish Forest

M Santoro, Leif Eriksson, M. Magnusson et al
IEEE Transactions on Geoscience and Remote Sensing. Vol. 47 (12), p. 4001-4019
Journal article
2009

Evaluating VHF-Band SAR Autofocus Algorithms using a Forest Backscatter Model

Lars Ulander, Annelie Wyholt
2009 IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2009; Cape Town; South Africa; 12 July 2009 through 17 July 2009. Vol. 4, p. 9-12
Paper in proceedings
2009

Comparison of L- and P-band biomass retrievals based on backscatter from the BioSAR campaign

Johan Holmgren, Gustaf Sandberg, T. Le Toan et al
Proceedings of IGARSS 2009 Symposium, Earth Observation – Origins to Applications, Cape Town, South Africa, 13-17 July, 2009. Vol. IV, p. 169-172
Conference contribution
2009

Model-based compensation of topography effects for improved stem volume retrieval from CARABAS-II VHF-band SAR images

Lars Ulander, Gary Smith Jonforsen, Klas Folkesson
IEEE Transactions on Geoscience and Remote Sensing. Vol. 47 (4), p. 1045-1055
Journal article
2009

Measurements of Faraday Rotation Using Polarimetric PALSAR Images

Lars Ulander, Leif Eriksson, Gustaf Sandberg
IEEE Geoscience and Remote Sensing Letters. Vol. 6 (1), p. 142-146
Journal article
2009

Mapping and monitoring clear-cuts in Swedish forest using ALOS PALSAR satellite images

Anders H. Krantz, Leif Eriksson, Håkan Olsson et al
Proceedings of IGARSS 2009 Symposium, Earth Observation – Origins to Applications, Cape Town, South Africa, 13-17 July, 2009. Vol. III, p. 589-592
Conference contribution
2008

A physical-optics model for double-bounce scattering from tree stems standing on an undulating ground surface

Gary Smith Jonforsen, Björn Hallberg, Gustaf Sandberg et al
IEEE Transactions on Geoscience and Remote Sensing. Vol. 46 (9), p. 2607-2621
Journal article
2008

Swiss Airborne Monostatic and Bistatic Dual-Pol SAR Experiment at the VHF-Band

P. Wellig, A. Gustavsson, E. Meier et al
in Proceedings of EUSAR 2008, 7th European Conference on Synthetic Aperture Radar, Friedrichshafen, GE, 2-5 June 2008. Vol. 1, p. 139-142
Conference contribution
2008

First Results on VHF-band SAR Imaging using Circular Tracks

A. Gustavsson, P-O. Frölind, Lars Ulander
in Proceedings of EUSAR 2008, 7th European Conference on Synthetic Aperture Radar, Friedrichshafen, GE, 2-5 June 2008. Vol. 1, p. 221-224
Conference contribution
2008

First results from a bistatic VHF SAR experiment

B. Flood, G. Stenström, Lars Ulander et al
in Proceedings of RVK08, Växjö, Sweden, 9-11 June 2008, p. 197-201
Conference contribution
2008

ALOS PALSAR calibration and validation activities in Sweden

M. Magnusson, J.E.S. Fransson, Gustaf Sandberg et al
Journal of Logic and Computation. Vol. JAXA-SP-07-012
Conference contribution
2008

Review of polarimetric indicators for forest characterisation over several sites

Lars Ulander, P. Dubois-Fernandez, I. Champion et al
Proceedings of IGARSS 2008, July 6-11, 2008, Boston, Massachusetts, USA. Vol. IV, p. 319-322
Conference contribution
2008

PALSAR Calibration Results from Sweden

Leif Eriksson, Lars Ulander, Gustaf Sandberg
Report
2008

Modeling of change detection in VHF- and UHF-band SAR

Lars Ulander, M. Lundberg
in Proceedings of EUSAR 2008, 7th European Conference on Synthetic Aperture Radar, Friedrichshafen, GE, 2-5 June 2008. Vol. 4, p. 127-130
Conference contribution
2008

Bistatic Experiment with Ultra-Wideband VHF-band Synthetic-Aperture Radar

A. Gustavsson, P-O. Frölind, E. Meier et al
in Proceedings of EUSAR 2008, 7th European Conference on Synthetic Aperture Radar, Friedrichshafen, GE, 2-5 June 2008. Vol. 1, p. 131-134
Conference contribution
2008

Detection of clear-cuts using ALOS PALSAR satellite images

J.E.S. Fransson, Gustaf Sandberg, M. Santoro et al
Proc. EUSAR 2008, 7th European Conference on Synthetic Aperture Radar, Friedrichshafen, Germany, 2-5 June 2008. Vol. 4, p. 103-106
Conference contribution
2008

Validating backscatter models for CARABAS SAR images of coniferous forests

Gary Smith Jonforsen, Lars Ulander, Klas Folkesson
Canadian J. of Remote Sensing. Vol. 34 (5), p. 480-495
Journal article
2007

Effects of Forest Biomass and Stand Consolidation on P-Band Backscatter

Klas Folkesson, Gary Smith Jonforsen, Lars Ulander et al
IEEE Geoscience and Remote Sensing Letters. Vol. 4 (4), p. 669-673
Scientific journal article - non peer reviewed
2007

Topographic and Number Density Effects in Forest Observations with P-band SAR

Klas Folkesson, Gustaf Sandberg, Gary Smith Jonforsen et al
Conference contribution
2007

Stem volume estimation for boreal forest using ALOS PALSAR

Leif Eriksson, J.E.S. Fransson, Lars Ulander et al
5th International Symposium on Retrieval of Bio- and Geophysical Parameters from SAR Data for Land Applications, Bari, Italy, September 25-28, 2007, ESA, Istituto di Studi sui Sistemi Intelligenti per l´Automazione, p. CD-
Conference contribution
2007

Faraday rotation measured in polarimetric PALSAR images compared with theoretical expectations

Lars Ulander, Leif Eriksson, Gustaf Sandberg
Conference contribution
2007

Estimation of forest stem volume using ALOS PALSAR satellite images

Leif Eriksson, M. Magnusson, Gustaf Sandberg et al
IEEE Geoscience and Remote Sensing Symposium (IGARSS 2007), Barcelona, Spain, July 23-27, 2007. Vol. DOI: 10.1109/IGARSS.2007.4423813, p. 4343-4346
Conference contribution
2007

Bistatic VHF and UHF SAR for urban environments

J.R. Rasmusson, Lars Ulander, A. Gustavsson et al
Proceedings of SPIE -- Volume 6547, Radar Sensor Technology XI, James L. Kurtz, Robert J. Tan, Editors, 654705, May 2, 2007. Vol. 6547
Conference contribution
2007

Detection of forest changes using ALOS PALSAR satellite images

Leif Eriksson, Gustaf Sandberg, J.E.S. Fransson et al
IEEE Geoscience and Remote Sensing Symposium (IGARSS 2007), Barcelona, Spain, July 23-27, 2007. Vol. DOI: 10.1109/IGARSS.2007.4423308, p. 2330-2333
Conference contribution
2007

Mapping of Wind-Thrown Forests Using VHF/UHF SAR Images

Lars Ulander, Gustaf Sandberg, Gary Smith Jonforsen et al
IEEE 2007 International Geoscience and Remote Sensing Symposium (IGARSS 2007), Barcelona, Spain, July 23-27 2007. Vol. DOI: 10.1109/IGARSS.2007.4423313, p. 2350-2353
Conference contribution
2007

ALOS PALSAR Calibration and Validation Results from Sweden

Leif Eriksson, A. Gustavsson, J.E.S. Fransson et al
IEEE Geoscience and Remote Sensing Symposium (IGARSS 2007), Barcelona, Spain, July 23-27, 2007. Vol. DOI: 10.1109/IGARSS.2007.4423115, p. 1589-1592
Conference contribution
2007

A Physical-optics Model for Predicting VHF/UHF-band HH-pol Backscatter from Coniferous Forests in Undulating Terrain

Gary Smith Jonforsen, Lars Ulander, Björn Hallberg et al
Conference contribution
2006

ALOS Calibration and Validation Activities in Sweden

J.E.S. Fransson, H. Olsson, Lars Ulander et al
IEEE Geoscience and Remote Sensing Symposium (IGARSS), held in Denver, Colorado, July 2006., p. 336-
Conference contribution
2006

Automatic Detection of Wind-Thrown Forest in VHF SAR Images

Björn Hallberg, Klas Folkesson, Gary Smith Jonforsen et al
IEEE Geoscience and Remote Sensing Symposium (IGARSS), held in Denver, Colorado, July 2006., p. 3599-
Conference contribution
2006

Fast Factorised Backprojection Algorithm for Processing of Microwave SAR Data

D. Murdin, Lars Ulander, P-O. Frölind
Conference contribution
2006

Bistatic clutter suppression in low-frequency SAR

Lars Ulander, T. Martin
Conference contribution
2006

VHF/UHF Ultra-Wideband SAR Measurements of Forests

P-O. Frölind, M. Magnusson, Gary Smith Jonforsen et al
Conference contribution
2006

A challenge problem for detection of targets in foliage

Lars Ulander, A. Gustavsson, M. Lundberg et al
Algorithms for Synthetic Aperture Radar Imagery XIII, Proceedings of the SPIE. Vol. 6237
Conference contribution
2006

Mapping of wind-thrown forests using the VHF-band CARABAS-II SAR

J.E.S. Fransson, Gary Smith Jonforsen, Leif Eriksson et al
IEEE Geoscience and Remote Sensing Symposium (IGARSS), held in Denver, Colorado, July 2006., p. 3684-
Conference contribution
2006

LORAM - A SAR/GMTI Data Collection Campaign

P. Dubois-Fernandez, A. Gustavsson, Björn Hallberg et al
Conference contribution
2006

Multi-pass and multi-date at P and L bands: Ground penetration and change detection

A. Gustavsson, X. Dupuis, Lars Ulander et al
Conference contribution
2006

Fast Factorised Backprojection Algorithm for Processing of SAR Data

Lars Ulander, D. Murdin, P-O. Frölind
Proc. IoA International Conference on Synthetic Aperture Sonar and Synthetic Aperture Radar, held in Lerici, Italy, 11-12 September, 2006., p. 168-175
Journal article
2005

Remote Sensing at the Department of Radio and Space Science, Chalmers University of Technology

Bo Galle, Lars Ulander, Gunnar Elgered et al
IEEE Geoscience and Remote Sensing Newsletter (136), p. 11-18
Magazine article
2005

LORA - a new airborne imaging radar sensor

J. Rasmusson, M. Blom, A. Gustavsson et al
Proc. RVK 05, Radiovetenskap och kommunikation, Linköping, Sweden, June 14-16 2005, p. 531-534
Conference contribution
2005

Evaluation of using space- and airborne radar for mapping wind-thrown forests after the January 2005 hurricane in southern Sweden

A. Persson, J.E.S. Fransson, A. Gustavsson et al
Forestsat 2005 / Olsson, H.. Vol. A, p. 99-104
Conference contribution
2005

Radar experiment addressing ground target detection based on VHF SAR data

W. Pierson, A. Gustavsson, Lars Ulander et al
Proc. RVK 05, Radiovetenskap och kommunikation, Linköping, Sweden, June 14-16 2005, p. 233-238
Conference contribution
2005

Mapping and monitoring forest stem volume using CARABAS

A. Gustavsson, J.E.S. Franssson, Björn Hallberg et al
Forestsat 2005 / Olsson, H.. Vol. B, p. 97-101
Conference contribution
2005

Employing UAVs to augment ISR capabilities

Lars Ulander, A. Gustavsson, M. Karlsson et al
Proc. RVK 05, Radiovetenskap och kommunikation, Linköping, Sweden, June 14-16 2005, p. 221-226
Journal article
2005

Measurements at tree level using CARABAS-II

Björn Hallberg, Lars Ulander, Gary Smith Jonforsen
Forestsat 2005 / Olsson, H.. Vol. A, p. 54-58
Conference contribution
2005

Bistatic ultra-wideband SAR for imaging of ground targets under foliage

Lars Ulander, T. Martin
Proc. 2005 IEEE International Radar Conference, held in Arlington, VA, May 9-12 2005, p. 419-423
Conference contribution
2005

Bistatic SAR simulations for imaging of ground targets under foliage

T. Martin, Lars Ulander
Proc. RVK 05, Radiovetenskap och kommunikation, Linköping, Sweden, June 14-16 2005, p. 579-582
Conference contribution
2005

Measurements on individual trees using multiple VHF SAR images

Björn Hallberg, Gary Smith Jonforsen, Lars Ulander
IEEE Trans. Geosci. Rem. Sens.. Vol. 43 (10), p. 2261-2269
Journal article
2005

Low VHF-band backscatter from coniferous forests on sloping terrain

Lars Ulander, Gary Smith Jonforsen, X. Luo
IEEE Trans. Geosci. Rem. Sens.. Vol. 43 (10), p. 2246-2260
Journal article
2005

Mapping of Wind-thrown Forests in Southern Sweden Using Space- and Airborne SAR

M. Magnusson, A. Persson, A. Gustavsson et al
IEEE "Geoscience and Remote Sensing Symposium (IGARSS), Seoul, Korea, 25-29 July. Vol. 5, p. 3619-3622
Conference contribution
2004

SAS processing using a polar version of fast factorised back-projection

Lars Ulander, G. Shippey, Per-Olov Frölind
IOA International Conference on Sonar Signal Processing, Loughborough, U.K., 14-15 Sep 2004. Vol. 26 (15)
Conference contribution
2004

Applications of Low-Frequency SAR: Final Project Report, ESA Contract No. 16115/02/NL/MM

D. Hoekman, Björn Hallberg, Gary Smith Jonforsen et al
Report
2004

Fast back-projection SAR processing using precision interpolation kernels

Lars Ulander, Per-Olov Frölind
EUSAR 2004, 5th European Conference on Synthetic Aperture Radr, held in Ulm, Germany, 25-27 May 2004., p. 153-156
Conference contribution
2004

Combining various ISR assets to create a common and complete ground picture

Lars Ulander, A. Gustavsson
EUSAR 2004, 5th European Conference on Synthetic Aperture Radar, held in Ulm, Germany, 25-27 May 2004., p. 301-304
Conference contribution
2004

Simulation of a Spaceborne Low-Frequency SAR for Global Biomass Assessment

Annelie Olofsson, Gary Smith Jonforsen, Björn Hallberg et al
Conference contribution
2004

VHF-band SAR for detection of concealed ground targets

Lars Ulander
Proc. NATO RTO Symposium on Sensor and Sensor Denial by Camouflage, Concealment and Deception, held in Brussels, Belgium, 19-20 April 2004, p. 19-1 - 19-11-
Conference contribution
2004

Automatic Segmentation of Multiple VHF-Band SAR Images to Improve Stem Volume Retrieval

Lars Ulander, Klas Folkesson, Gary Smith Jonforsen
IEEE Geoscience and Remote Sensing Symposium (IGARSS), Anchorage, Alaska, Sept. 2004, p. 519-522
Paper in proceedings
2004

Estimation of Forest Stem Volume in Sloping Terrain Using CARABAS-II VHF SAR Data

Lars Ulander, Gary Smith Jonforsen, J.E.S. Fransson et al
Can. J. Rem. Sens.. Vol. 30, p. 651-660
Journal article
2004

Performance of VHF-band SAR change detection for wide-area surveilllance of concealed ground targets

Lars Ulander, Per-Olov Frölind, W. Pierson et al
SPIE Proc. Algorithms for Synthetic Aperture Radar Imagery XI, Orlando, FL, 12-15 April 2004. Vol. 5427, p. 259-270
Conference contribution
2004

Performance Simulation of Spaceborne P-Band SAR for Global Biomass Retrieval

Lars Ulander, Gary Smith Jonforsen, Björn Hallberg et al
IEEE "Geoscience and Remote Sensing Symposium (IGARSS), Anchorage, Alaska, Sept 2004, p. 503-506
Paper in proceedings
2003

Stem volume retrieval at stand level using multiple low-frequency SAR images

Lars Ulander, Klas Folkesson, Gary Smith Jonforsen
IEEE Geoscience and Remote Sensing Symposium (IGARSS), Toulouse, France, 21-25 July. Vol. IV, p. 2556-8
Conference contribution
2003

Synthetic-aperture radar processing using fast factorized back-projection

Lars Ulander, G. Stenstrom, H. Hellsten
IEEE Transactions on Aerospace and Electronic Systems. Vol. 39 (3), p. 760-776
Journal article
2003

A production line for forest stem volume measurements from VHF SAR data

A. Gustavsson, B. Larsson, I. Ostman et al
IEEE "Geoscience and Remote Sensing Symposium (IGARSS), Toulouse, France, 21-25 July. Vol. IV, p. 2544-6
Conference contribution
2002

Forest stem volume estimation using high-resolution lidar and SAR data

J. Holmgren, Lars Ulander, J.E.S. Fransson et al
IEEE Geoscience and Remote Sensing Symposium (IGARSS), Toronto, Canada, 24-28 June. Vol. IV, p. 2084-6
Conference contribution
1999

Simulations of Ground Moving Target Indication in an Ultra-Wideband and Wide-Beam SAR System

H. Hellsten, Lars Ulander, M.I. Pettersson
Proceedings of the SPIE's International Symposium on Optical Science, Engineering and Instrumentation, Denver, Colorado, USA. Vol. 3810, p. 84-95
Paper in proceedings
1999

Jammer Suppresson in an Ultra-Wideband and Widebeam SAR System

M.I. Pettersson, Lars Ulander
Paper in proceedings
1996

RCS of dipoles used for SAR calibration

Lars Ulander, Zvonimir Sipus
Paper in proceedings