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Absolute Height Estimation Using a Single TerraSAR-X Staring Spotlight Acquisition

Duque, Sergi and Breit, Helko and Balss, Ulrich and Parizzi, Alessandro (2015) Absolute Height Estimation Using a Single TerraSAR-X Staring Spotlight Acquisition. IEEE Geoscience and Remote Sensing Letters, 12 (8), pp. 1735-1739. IEEE - Institute of Electrical and Electronics Engineers. doi: 10.1109/LGRS.2015.2422893. ISSN 1545-598X.

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Official URL: http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=7100871

Abstract

The work presented in this letter exploits the long synthetic aperture radar (SAR) of a single TerraSAR-X Staring Spotlight (ST) acquisition to derive absolute heights. Here, the slight azimuth defocusing effect due to height mismatch between the true height and the height assumed in SAR focusing is analyzed. The impact is almost negligible for most of acquisition modes. In contrast, spaceborne modes with very long aperture, such as the TerraSAR-X ST acquisition mode, present sensibility that can be used to retrieve absolute heights. The accuracy depends on incidence angle, orbit type, and mainly on signal-to-clutter ratio. Two different results are presented to demonstrate that absolute heights can be retrieved with accuracy of few meters using a single TerraSAR-X ST acquisition.

Item URL in elib:https://elib.dlr.de/98383/
Document Type:Article
Title:Absolute Height Estimation Using a Single TerraSAR-X Staring Spotlight Acquisition
Authors:
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Duque, SergiSergi.DuqueBiarge (at) dlr.deUNSPECIFIED
Breit, HelkoHelko.Breit (at) dlr.deUNSPECIFIED
Balss, Ulrichulrich.balss (at) dlr.deUNSPECIFIED
Parizzi, Alessandroalessandro.parizzi (at) dlr.deUNSPECIFIED
Date:August 2015
Journal or Publication Title:IEEE Geoscience and Remote Sensing Letters
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:Yes
Volume:12
DOI :10.1109/LGRS.2015.2422893
Page Range:pp. 1735-1739
Editors:
EditorsEmailEditor's ORCID iD
Frery, Alejandro C.acfrery@gmail.comUNSPECIFIED
Publisher:IEEE - Institute of Electrical and Electronics Engineers
ISSN:1545-598X
Status:Published
Keywords:estimation theory;radar clutter;synthetic aperture radar;SAR focusing analysis;ST acquisition mode;absolute height estimation;azimuth defocusing effect;signal-to-clutter ratio;single TerraSAR-X staring spotlight acquisition mode;spaceborne radar;synthetic aperture radar;Accuracy;Azimuth;Delays;Estimation;Frequency modulation;Orbits;Synthetic aperture radar;Absolute height;Staring Spotlight (ST);TerraSAR-X
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 hochauflösende Fernerkundungsverfahren (old)
Location: Oberpfaffenhofen
Institutes and Institutions:Remote Sensing Technology Institute > SAR Signal Processing
Deposited By: Duque Biarge, Sergi
Deposited On:02 Oct 2015 13:29
Last Modified:31 Jul 2019 19:55

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