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Enhancing Interferometric SAR Performance over Sandy Areas: Experience from the TanDEM-X Mission

Martone, Michele and Bräutigam, Benjamin and Rizzoli, Paola and Yague-Martinez, Nestor and Krieger, Gerhard (2016) Enhancing Interferometric SAR Performance over Sandy Areas: Experience from the TanDEM-X Mission. IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 9 (3), pp. 1036-1046. IEEE - Institute of Electrical and Electronics Engineers. DOI: 10.1109/JSTARS.2015.2418537 ISSN 1939-1404

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Official URL: http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=7091859

Abstract

The TanDEM-X mission is served by two X-band synthetic aperture radar (SAR) satellites, which fly in close orbit formation acting as a large and flexible single-pass radar interferometer. The primary goal of the mission is the creation of a consistent and global digital elevation model (DEM). A very good and reproducible performance has been verified for most of the land masses. In this paper, a detailed performance analysis of TanDEM-X data over sandy desert areas is presented, which show a strong impact on the quality of spaceborne SAR surveys. The influence on SAR and interferometric (InSAR) performance of several acquisition parameters is evaluated by means of statistical analyses as well as long-term repeated acquisitions on defined test sites. Alternative processing approaches aiming at improving the quality of the interferometric products are presented, too. From the obtained analyses, a description of the scattering mechanisms occurring at X-band over sandy surfaces is derived, which allows to plan a dedicated reacquisition of such areas with optimized imaging geometry in order to improve the quality of the final TanDEM-X DEM.

Item URL in elib:https://elib.dlr.de/91928/
Document Type:Article
Title:Enhancing Interferometric SAR Performance over Sandy Areas: Experience from the TanDEM-X Mission
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Martone, MicheleMichele.Martone (at) dlr.deUNSPECIFIED
Bräutigam, Benjaminbenjamin.braeutigam (at) dlr.deUNSPECIFIED
Rizzoli, Paolapaola.rizzoli (at) dlr.deUNSPECIFIED
Yague-Martinez, NestorNestor.Yague (at) dlr.deUNSPECIFIED
Krieger, Gerhardgerhard.krieger (at) dlr.deUNSPECIFIED
Date:March 2016
Journal or Publication Title:IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:Yes
Volume:9
DOI :10.1109/JSTARS.2015.2418537
Page Range:pp. 1036-1046
Editors:
EditorsEmail
Chanussot, Jocelynjocelyn.chanussot@gipsa-lab.grenoble-inp.fr
Publisher:IEEE - Institute of Electrical and Electronics Engineers
ISSN:1939-1404
Status:Published
Keywords:Synthetic aperture radar interferometry (InSAR), digital elevation model (DEM), TanDEM-X, desert, SNR decorrelation.
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Earth Observation
DLR - Research area:Raumfahrt
DLR - Program:R EO - Erdbeobachtung
DLR - Research theme (Project):R - Projekt TanDEM-X
Location: Oberpfaffenhofen
Institutes and Institutions:Microwaves and Radar Institute > Spaceborne SAR Systems
Microwaves and Radar Institute > Radar Concepts
Remote Sensing Technology Institute > SAR Signal Processing
Deposited By: Martone, Michele
Deposited On:13 Nov 2014 16:48
Last Modified:31 Jul 2019 19:49

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