DLR-Logo -> http://www.dlr.de
DLR Portal Home | Imprint | Privacy Policy | Contact | Deutsch
Fontsize: [-] Text [+]

TomoSAR Mapping of 3D Forest Structure: Contributions of L-Band Configurations

Pardini, Matteo and Cazcarra-Bes, Victor and Papathanassiou, Konstantinos (2021) TomoSAR Mapping of 3D Forest Structure: Contributions of L-Band Configurations. Remote Sensing. Multidisciplinary Digital Publishing Institute (MDPI). doi: 10.3390/rs13122255. ISSN 2072-4292.

[img] PDF - Published version

Official URL: https://www.mdpi.com/2072-4292/13/12/2255


Synthetic Aperture Radar (SAR) measurements are unique for mapping forest 3D structure and its changes in time. Tomographic SAR (TomoSAR) configurations exploit this potential by reconstructing the 3D radar reflectivity. The frequency of the SAR measurements is one of the main parameters determining the information content of the reconstructed reflectivity in terms of penetration and sensitivity to the individual vegetation elements. This paper attempts to review and characterize the structural information content of L-band TomoSAR reflectivity reconstructions, and their potential to forest structure mapping. First, the challenges in the accurate TomoSAR reflectivity reconstruction of volume scatterers (which are expected to dominate at L-band) and to extract physical structure information from the reconstructed reflectivity is addressed. Then, the L-band penetration capability is directly evaluated by means of the estimation performance of the sub-canopy ground topography. The information content of the reconstructed reflectivity is then evaluated in terms of complementary structure indices. Finally, the dependency of the TomoSAR reconstruction and of its structural information to both the TomoSAR acquisition geometry and the temporal change of the reflectivity that may occur in the time between the TomoSAR measurements in repeat-pass or bistatic configurations is evaluated. The analysis is supported by experimental results obtained by processing airborne acquisitions performed over temperate forest sites close to the city of Traunstein in the south of Germany.

Item URL in elib:https://elib.dlr.de/146465/
Document Type:Article
Title:TomoSAR Mapping of 3D Forest Structure: Contributions of L-Band Configurations
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Pardini, MatteoUNSPECIFIEDhttps://orcid.org/0000-0003-2018-7514UNSPECIFIED
Cazcarra-Bes, VictorUNSPECIFIEDhttps://orcid.org/0000-0002-6776-4553UNSPECIFIED
Date:9 June 2021
Journal or Publication Title:Remote Sensing
Refereed publication:Yes
Open Access:Yes
Gold Open Access:Yes
In ISI Web of Science:Yes
Publisher:Multidisciplinary Digital Publishing Institute (MDPI)
Keywords:forest structure; synthetic aperture radar; tomography; L-band
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 - Polarimetric SAR Interferometry HR
Location: Oberpfaffenhofen
Institutes and Institutions:Microwaves and Radar Institute > Radar Concepts
Deposited By: Pardini, Dr.-Ing. Matteo
Deposited On:30 Nov 2021 14:18
Last Modified:24 May 2022 23:47

Repository Staff Only: item control page

Help & Contact
electronic library is running on EPrints 3.3.12
Website and database design: Copyright © German Aerospace Center (DLR). All rights reserved.