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

Impact of Dielectric Changes of Forest Volumes on L-Band SAR Reflectivity Profiles

Pardini, Matteo and Papathanassiou, Konstantinos and Lombardini, Fabrizio (2018) Impact of Dielectric Changes of Forest Volumes on L-Band SAR Reflectivity Profiles. IEEE Transactions on Geoscience and Remote Sensing, 56 (12), pp. 7324-7337. IEEE - Institute of Electrical and Electronics Engineers. doi: 10.1109/TGRS.2018.2850357. ISSN 0196-2892.

Full text not available from this repository.

Official URL: https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=8424543


Synthetic Aperture Radar (SAR) Tomography (TomoSAR) allows reconstructing a vertical profile of the power backscattered by natural volumes by combining more than two SAR images acquired with slightly different incidence angles. Being an electromagnetic quantity, the profile depends on the radar frequency, polarization, and acquisition geometry, but also on the 3-D distribution of the backscattering elements and their dielectric properties. The characterization of each one of these factors is crucial to enable the extraction of physical 3-D structure attributes from TomoSAR profiles. The objective of this work is to investigate how L-band TomoSAR reflectivity profiles of forest volumes are affected by seasonal and weather-induced changes of their dielectric properties. Radiometric (e.g. ground and volume powers) and geometric (e.g. center of mass of the volume-only profiles and phase centers of the volume scattering layers) parameters have been estimated under different conditions and compared. Then, TomoSAR data sets affected by dielectric non-stationarities (i.e. changing conditions) have been considered in order to assess the invariance of each radiometric and geometric parameter. This analysis has been carried out by processing four L-band airborne TomoSAR data sets acquired before and after a rainfall, and in spring and autumn over the Traunstein forest (South of Germany).

Item URL in elib:https://elib.dlr.de/118322/
Document Type:Article
Title:Impact of Dielectric Changes of Forest Volumes on L-Band SAR Reflectivity Profiles
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Pardini, MatteoUNSPECIFIEDhttps://orcid.org/0000-0003-2018-7514UNSPECIFIED
Lombardini, FabrizioUniversity of PisaUNSPECIFIEDUNSPECIFIED
Date:December 2018
Journal or Publication Title:IEEE Transactions on Geoscience and Remote Sensing
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In ISI Web of Science:Yes
Page Range:pp. 7324-7337
Publisher:IEEE - Institute of Electrical and Electronics Engineers
Keywords:Forest structure, synthetic aperture radar (SAR), SAR tomography (TomoSAR), dielectric changes.
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 Tandem-L Vorstudien (old)
Location: Oberpfaffenhofen
Institutes and Institutions:Microwaves and Radar Institute > Radar Concepts
Deposited By: Pardini, Dr.-Ing. Matteo
Deposited On:18 Jan 2018 14:18
Last Modified:19 Dec 2018 19:50

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.