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Analysis of Internal Timings and Clock Rates of TerraSAR-X

Balss, Ulrich and Breit, Helko and Fritz, Thomas and Steinbrecher, Ulrich and Gisinger, Christoph and Eineder, Michael (2014) Analysis of Internal Timings and Clock Rates of TerraSAR-X. In: Proceedings of the 2014 IEEE International Geoscience & Remote Sensing Symposium, pp. 2671-2674. IEEE Xplore. IGARSS 2014, 13.-18. Juli 2014, Quebec, Kanada. ISBN 978-1-4799-5774-3

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Official URL: http://www.igarss2014.org/Papers/viewpapers.asp?papernum=3910

Abstract

Due to the indirect measurement principle of radar on base of signal travel time, a very precise calibration of the sensor’s internal clock with regard to clock rate and potential time offsets relative to the Coordinated Universal Time is an essential prerequisite for accurate pixel localization in Synthetic Aperture Radar. Giving special considerations on this aspect, we developed two algorithms that improve the already high localization accuracy of TerraSAR-X: The either one very precisely determines the true oscillator clock rate, while the other one effectively refines the accuracy of time annotation. Experimental analyses evaluate the obtained improvements in localization accuracy from both techniques.

Item URL in elib:https://elib.dlr.de/89975/
Document Type:Conference or Workshop Item (Speech)
Title:Analysis of Internal Timings and Clock Rates of TerraSAR-X
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Balss, Ulrichulrich.balss (at) dlr.deUNSPECIFIED
Breit, HelkoHelko.Breit (at) dlr.deUNSPECIFIED
Fritz, Thomasthomas.fritz (at) dlr.deUNSPECIFIED
Steinbrecher, UlrichUlrich.Steinbrecher (at) dlr.deUNSPECIFIED
Gisinger, ChristophTUM-IAPGUNSPECIFIED
Eineder, Michaelmichael.eineder (at) dlr.deUNSPECIFIED
Date:13 July 2014
Journal or Publication Title:Proceedings of the 2014 IEEE International Geoscience & Remote Sensing Symposium
Refereed publication:No
Open Access:Yes
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Page Range:pp. 2671-2674
Publisher:IEEE Xplore
ISBN:978-1-4799-5774-3
Status:Published
Keywords:Synthetic aperture radar, TerraSAR-X, precise time measurements, pixel localization accuracy
Event Title:IGARSS 2014
Event Location:Quebec, Kanada
Event Type:international Conference
Event Dates:13.-18. Juli 2014
Organizer:IEEE
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:Remote Sensing Technology Institute > SAR Signal Processing
Microwaves and Radar Institute > Spaceborne SAR Systems
Deposited By: Balss, Dr. Ulrich
Deposited On:25 Jul 2014 14:53
Last Modified:31 Jul 2019 19:47

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