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Role of the Orbital Tube in Interferometric Spaceborne SAR Missions

Prats, Pau and Rodriguez-Cassola, Marc and De Zan, Francesco and Scheiber, Rolf and Lopez-Dekker, Paco and Barat, Itziar and Geudtner, Dirk (2015) Role of the Orbital Tube in Interferometric Spaceborne SAR Missions. IEEE Geoscience and Remote Sensing Letters, 12 (7), pp. 1486-1490. IEEE - Institute of Electrical and Electronics Engineers. DOI: 10.1109/LGRS.2015.2409885 ISSN 1545-598X

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Official URL: http://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=7065218

Abstract

The orbit for Earth observation satellite SAR missions is maintained within an Earth-fixed orbital tube to ensure ground-track coverage repeatability, and consequently, enable repeat-pass interferometric compatibility between data takes. In this letter it is shown that the size of the orbital tube may impact the interferometric performance in terms of azimuth spectral decorrelation and azimuth coregistration accuracy under the presence of squint. These effects require special consideration for SAR burst modes, such as ScanSAR or TOPS (i.e., Terrain Observation by Progressive Scans). The paper presents and analyses these aspects in the frame of the Sentinel-1 mission.

Item URL in elib:https://elib.dlr.de/95539/
Document Type:Article
Additional Information:©2015 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:Role of the Orbital Tube in Interferometric Spaceborne SAR Missions
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Prats, PauUNSPECIFIEDUNSPECIFIED
Rodriguez-Cassola, MarcUNSPECIFIEDUNSPECIFIED
De Zan, FrancescoUNSPECIFIEDUNSPECIFIED
Scheiber, RolfUNSPECIFIEDUNSPECIFIED
Lopez-Dekker, PacoUNSPECIFIEDUNSPECIFIED
Barat, ItziarESA-ESTECUNSPECIFIED
Geudtner, DirkESA-ESTECUNSPECIFIED
Date:July 2015
Journal or Publication Title:IEEE Geoscience and Remote Sensing Letters
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:Yes
Volume:12
DOI :10.1109/LGRS.2015.2409885
Page Range:pp. 1486-1490
Publisher:IEEE - Institute of Electrical and Electronics Engineers
ISSN:1545-598X
Status:Published
Keywords:Synthetic aperture radar (SAR), interferometric SAR (InSAR), orbital tube, TOPS, ScanSAR, spectral decorrelation, coregistration.
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 - Vorhaben Flugzeug-SAR, R - Vorhaben hochauflösende Fernerkundungsverfahren
Location: Oberpfaffenhofen
Institutes and Institutions:Microwaves and Radar Institute
Microwaves and Radar Institute > Radar Concepts
Microwaves and Radar Institute > SAR Technology
Remote Sensing Technology Institute > SAR Signal Processing
Deposited By: Prats, Dr. Pau
Deposited On:06 Mar 2015 13:48
Last Modified:08 Mar 2018 18:30

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