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Recent Advances in Highly Accurate Range Measurements with TerraSAR-X

Eineder, Michael and Balss, Ulrich and Gisinger, Christoph and Cong, Xiaoying and Brcic, Ramon and Steigenberger, Peter (2013) Recent Advances in Highly Accurate Range Measurements with TerraSAR-X. In: EGU General Assembly 2013 Abstracts, 15 (EGU2013-4560). EGU General Assembly 2013, 7.-12. Apr. 2013, Wien.

Full text not available from this repository.

Official URL: http://meetingorganizer.copernicus.org/EGU2013/EGU2013-4560.pdf


Earth surface displacement measurement from space using Synthetic Aperture Radar (SAR) imagery is an interesting alternative to SAR interferometry (InSAR). The advantages are that 2D information can be retrieved (InSAR only 1D), absolute displacements can be retrieved (no reference point required) and it is very robust (phase unwrapping not required). On the other hand, the accuracy is limited by the pixel resolution, the object contrast, the orbit accuracy, by wave propagation distortion and by geodetic effects. Therefore the accuracy was more in the meter / decimeter level in the past, compared to millimeter accuracy of InSAR. During the recent years our team established a test and validation site at the geodetic observatory Wettzell, Germany and developed compensation methods to reduce the overall error of absolute range measurements from decimeters to only one centimeter. The methods include correction of dry and wet atmospheric delays, ionospheric corrections, solid earth tides, continental drift, atmospheric pressure loading and ocean tidal loading. For more one year a radar reflector was monitored and each image evaluated. Our presentation gives and overview of methods and achieved results. Futhermore, examples of real world applications and an outlook on more applications is given such as phase unwrapping augmentation.

Item URL in elib:https://elib.dlr.de/82246/
Document Type:Conference or Workshop Item (Speech)
Title:Recent Advances in Highly Accurate Range Measurements with TerraSAR-X
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Balss, Ulrichulrich.balss (at) dlr.deUNSPECIFIED
Brcic, Ramonramon.brcic (at) dlr.deUNSPECIFIED
Steigenberger, PeterTUMUNSPECIFIED
Journal or Publication Title:EGU General Assembly 2013 Abstracts
Refereed publication:No
Open Access:No
Gold Open Access:No
In ISI Web of Science:No
Copernicus, Org.UNSPECIFIED
Keywords:Surface motion, Interferometry, SAR, absolute ranging, corner reflector
Event Title:EGU General Assembly 2013
Event Location:Wien
Event Type:international Conference
Event Dates:7.-12. Apr. 2013
Organizer:European Geosciences Union
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 hochauflösende Fernerkundungsverfahren
Location: Oberpfaffenhofen
Institutes and Institutions:Remote Sensing Technology Institute > SAR Signal Processing
Deposited By: Eineder, Prof. Dr. Michael
Deposited On:08 May 2013 15:20
Last Modified:14 May 2013 10:33

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