B
B. Hallberg
Researcher at Chalmers University of Technology
Publications - 22
Citations - 150
B. Hallberg is an academic researcher from Chalmers University of Technology. The author has contributed to research in topics: Radar & Synthetic aperture radar. The author has an hindex of 7, co-authored 22 publications receiving 148 citations. Previous affiliations of B. Hallberg include Saab AB.
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Journal ArticleDOI
Effects of Forest Biomass and Stand Consolidation on P-Band Backscatter
TL;DR: It is shown that, while biomass may be the single most important parameter determining the backscatter from a forest, the number density of trees has also a major impact, leading to the use of the biomass-consolidation index to describe P-band HV-polarized back scatter.
Journal ArticleDOI
A Physical-Optics Model for Double-Bounce Scattering From Tree Stems Standing on an Undulating Ground Surface
TL;DR: The results indicate that ground topography must be considered when predicting the variations in backscatter in the SAR images studied, and the model did, however, fail to predict the absolute values of the backscattered intensity.
Journal ArticleDOI
Measurements on individual trees using multiple VHF SAR images
TL;DR: A nearly linear relation between backscattered amplitude and individual stem volume for trees with a stem volume over 0.2 m/sup 3/ was found, which is in agreement with previous results at stand level.
Proceedings ArticleDOI
Performance simulation of spaceborne P-band SAR for global biomass retrieval
TL;DR: This paper evaluates the use of a spaceborne low-frequency synthetic aperture radar for forest biomass retrieval and indicates that it is possible to separate boreal forest into three classes assuming a moderate distorted ionosphere.
Proceedings ArticleDOI
ALOS PALSAR Calibration and Validation Results from Sweden
Leif E. B. Eriksson,Gustaf Sandberg,Lars M. H. Ulander,G. Smith-Jonforsen,B. Hallberg,K. Folkesson,Johan E. S. Fransson,Mattias Magnusson,Håkan Olsson,Anders Gustavsson,B. Flood +10 more
TL;DR: Results show that the co-polarized data have been stable during the whole calibration period with variations in the trihedral responses lower than 0.7 dB, which is assumed to be caused by a larger sensitivity to pointing errors.