Björn Hallberg

Showing 21 publications

2008

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

Björn Hallberg, Gary Smith Jonforsen, Lars Ulander et al
IEEE Transactions on Geoscience and Remote Sensing. Vol. 46 (9), p. 2607-2621
Journal article
2007

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

Gary Smith Jonforsen, Klas Folkesson, Björn Hallberg et al
IEEE Geoscience and Remote Sensing Letters. Vol. 4 (4), p. 669-673
Magazine article
2007

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

Gustaf Sandberg, Björn Hallberg, Gary Smith Jonforsen et al
5th International Symposium on Retrieval of Bio- and Geophysical Parameters from SAR Data, Bari, Italy, September 25-28, 2007, ESA, Istituto di Studi sui Sistemi Intelligenti per l`Automazione
Conference contribution
2007

ALOS PALSAR Calibration and Validation Results from Sweden

Leif Eriksson, Gustaf Sandberg, Lars Ulander 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

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

J.E.S. Fransson, M. Magnusson, Klas Folkesson 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
2006

Automatic Detection of Wind-Thrown Forest in VHF SAR Images

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

Algorithms for automatic detection of wind thrown trees in CARABAS SAR images

Gary Smith Jonforsen, Björn Hallberg, Klas Folkesson
Report
2006

VHF/UHF Ultra-Wideband SAR Measurements of Forests

Gary Smith Jonforsen, Björn Hallberg, Klas Folkesson et al
EUSAR 2006, held in Dresden, Germany, May 2006.
Conference contribution
2006

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

Lars Ulander, A. Gustavsson, Gary Smith Jonforsen 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

A. Gustavsson, Lars Ulander, P-O. Frölind et al
EUSAR 2006, held in Dresden, Germany, May 2006.
Conference contribution
2005

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

Lars Ulander, Gary Smith Jonforsen, Leif Eriksson et al
Forestsat 2005 / Olsson, H.. Vol. A, p. 99-104
Conference contribution
2005

Mapping and monitoring forest stem volume using CARABAS

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

Measurements at tree level using CARABAS-II

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

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

Lars Ulander, Gary Smith Jonforsen, Leif Eriksson et al
IEEE "Geoscience and Remote Sensing Symposium (IGARSS), Seoul, Korea, 25-29 July. Vol. 5, p. 3619-3622
Conference contribution
2004

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

Gary Smith Jonforsen, Anders Carlström, Klas Folkesson et al
Report
2004

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

Björn Hallberg, Gary Smith Jonforsen, Annelie Olofsson et al
“Radar 2004”, Toulouse, France, 18-22 October, 2004.
Conference contribution
2004

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

Björn Hallberg, Gary Smith Jonforsen, Annelie Olofsson et al
IEEE "Geoscience and Remote Sensing Symposium (IGARSS), Anchorage, Alaska, Sept 2004, p. 503-506
Paper in proceedings
2002

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

Gary Smith Jonforsen, Å. Persson, J. Holmgren et al
IEEE Geoscience and Remote Sensing Symposium (IGARSS), Toronto, Canada, 24-28 June. Vol. IV, p. 2084-6
Conference contribution

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