Kugler, Florian and Schulze, Daniel and Hajnsek, Irena and Pretzsch, Hans and Papathanassiou, Konstantinos (2014) TanDEM-X Pol-InSAR Performance for Forest Height Estimation. IEEE Transactions on Geoscience and Remote Sensing, 52 (10), pp. 6404-6422. IEEE - Institute of Electrical and Electronics Engineers. doi: 10.1109/TGRS.2013.2296533. ISSN 0196-2892.
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Abstract
TanDEM-X and the TerraSAR-X platforms form together the first spaceborne single-pass polarimetric interferometer in space. This allows for the first time, the acquisition of spaceborne Pol-InSAR data without the disturbing effect of temporal decorrelation. This paper aims to assess the potential of such data for forest applications. For this, single- and dual-pol data acquired over a boreal, a temperate and a tropical site were investigated to characterize X-band penetration and polarization diversity of the interferometric coherence measurements. Pol-InSAR forest height inversion schemes have been proposed and implemented for the single- and dual-pol case and cross validated against LIDAR reference measurements for all sites. The single-pol inversion relies on an external ground digital terrain model (DTM) and performed well for all sites with correlation coefficients r² between 0.80 and 0.98. The dual-pol inversion does not require an external DTM but depends on the visibility of the whole forest layer. Accordingly, its performance varied with forest structure and season: Best performance was achieved for the summer acquisition of the boreal test site (r²=0.86) and for the winter acquisition of the temperate test site (r²=0.77). For the tropical test site, only a weak correlation (r²= ~0.50) could be established.
Item URL in elib: | https://elib.dlr.de/86662/ | ||||||||||||||||||
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Document Type: | Article | ||||||||||||||||||
Title: | TanDEM-X Pol-InSAR Performance for Forest Height Estimation | ||||||||||||||||||
Authors: |
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Date: | October 2014 | ||||||||||||||||||
Journal or Publication Title: | IEEE Transactions on Geoscience and Remote Sensing | ||||||||||||||||||
Refereed publication: | Yes | ||||||||||||||||||
Open Access: | No | ||||||||||||||||||
Gold Open Access: | No | ||||||||||||||||||
In SCOPUS: | Yes | ||||||||||||||||||
In ISI Web of Science: | Yes | ||||||||||||||||||
Volume: | 52 | ||||||||||||||||||
DOI : | 10.1109/TGRS.2013.2296533 | ||||||||||||||||||
Page Range: | pp. 6404-6422 | ||||||||||||||||||
Publisher: | IEEE - Institute of Electrical and Electronics Engineers | ||||||||||||||||||
ISSN: | 0196-2892 | ||||||||||||||||||
Status: | Published | ||||||||||||||||||
Keywords: | Synthetic Aperture Radar, Interferometry, Polarimetric SAR Interferometry, X-band, TerraSAR-X, TanDEM-X, Forest, Forest Parameter, Forest Height | ||||||||||||||||||
HGF - Research field: | Aeronautics, Space and Transport | ||||||||||||||||||
HGF - Program: | Space | ||||||||||||||||||
HGF - Program Themes: | Earth Observation | ||||||||||||||||||
DLR - Research area: | Raumfahrt | ||||||||||||||||||
DLR - Program: | R EO - Earth Observation | ||||||||||||||||||
DLR - Research theme (Project): | R - Vorhaben Technologie Experimente TSX und TDX (old) | ||||||||||||||||||
Location: | Oberpfaffenhofen | ||||||||||||||||||
Institutes and Institutions: | Microwaves and Radar Institute > Radar Concepts Microwaves and Radar Institute Microwaves and Radar Institute > Spaceborne SAR Systems | ||||||||||||||||||
Deposited By: | Kugler, Florian | ||||||||||||||||||
Deposited On: | 12 Dec 2013 11:02 | ||||||||||||||||||
Last Modified: | 08 Mar 2018 18:34 |
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