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SAR Coherence Tomography For Boreal Forest With Aid of Laser Measurements

Praks, Jaan and Kugler, Florian and Hyypä, Juha and Papathanassiou, Konstantinos and Hallikainen, Martti (2008) SAR Coherence Tomography For Boreal Forest With Aid of Laser Measurements. In: Proceedings of the IEEE Geoscience and Remote Sensing Symposium (IGARSS), p. 4. IEEE GRSS. IEEE Geoscience and Remote Sensing Symposium (IGARSS), 2008-07-06 - 2008-07-11, Boston, Massachusetts, USA.

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In this paper we evaluate X- and L-band SAR coherence tomography in boreal forest with the help of detailed digital terrain and canopy height models, produced by laser scanning. Polarimetric coherence tomography (PCT) needs accurate estimates of ground phase and tree height. Supplemental accurate elevation models allow us to evaluate the performance of PCT in normal case when initial values are derived from RVoG model inversion and provides opportunity to use PCT for nonpolarimetric data. The work is based on E-SAR Lband and X-band measurements in Finland. Our results show that with accurate elevation and tree height information single polarizationX-band coherence tomography is feasible and works well. Accurate ground elevation information improves also the performance of fully polarimetric repeat pass L-band PCT. The laser DEM provides better ground phase estimate than RVoGmodel inversion in the presence of temporal decorrelation. Our results show that accurate ground phase estimation ismore critical for successful coherence tomography than other parameters.

Document Type:Conference or Workshop Item (Speech, Paper)
Additional Information:©2008 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.
Title:SAR Coherence Tomography For Boreal Forest With Aid of Laser Measurements
AuthorsInstitution or Email of Authors
Praks, JaanHelsinki University of Technology, 1Department of Radio Science and Engineering
Kugler, FlorianUNSPECIFIED
Hyypä, JuhaHelsinki University of Technology, Department of Radio Science and Engineering
Papathanassiou, KonstantinosUNSPECIFIED
Hallikainen, MarttiHelsinki University of Technology, Department of Radio Science and Engineering
Date:July 2008
Journal or Publication Title:Proceedings of the IEEE Geoscience and Remote Sensing Symposium (IGARSS)
Refereed publication:No
In ISI Web of Science:No
Page Range:p. 4
Publisher:IEEE GRSS
Series Name:Proceedings
Keywords:SAR, Boreal Forest, forest, Interferometry, PolInSAR, Tomography, lidar, scatterometer, Hutscat
Event Title:IEEE Geoscience and Remote Sensing Symposium (IGARSS)
Event Location:Boston, Massachusetts, USA
Event Type:international Conference
Event Dates:2008-07-06 - 2008-07-11
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Space (old)
HGF - Program Themes:W EO - Erdbeobachtung
DLR - Research area:Space
DLR - Program:W EO - Erdbeobachtung
DLR - Research theme (Project):W - Vorhaben Prosmart, Smart-SAR (old)
Location: Oberpfaffenhofen
Institutes and Institutions:Microwaves and Radar Institute > Radar Concepts
Microwaves and Radar Institute
Deposited By: Florian Kugler
Deposited On:28 Jul 2008
Last Modified:12 Dec 2013 20:32

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