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InSAR Error Budget for Large Scale Deformation

De Zan, Francesco and Rodriguez Gonzalez, Fernando and Ansari, Homa and Gomba, Giorgio and Brcic, Ramon and Eineder, Michael (2019) InSAR Error Budget for Large Scale Deformation. IGARSS 2019, 28. Jul. - 02. Aug. 2019, Yokohama, Japan.

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The capacity of SAR interferometry to measure surface deformation with accuracy of 1 mm/year or better are well known. However this is typically limited to relative motion at short distance. Thanks to several advances in SAR sensor quality, data availability, orbit determination, processing, and calibration of atmospheric delays it is now possible to achieve that accuracy even across large distances of hundreds of kilometers. In this paper we revise the main contributions to the large scale error, considering available mitigation techniques. We provide a first validation for a processing based on Sentinel-1 data, by comparing our results with GNSS stations. For future SAR's operating at lower frequencies, it is vital to consider ionospheric corrections and likely also the influence of moisture ariations in natural scatterers. The choice of processing algorithms, though typically not discussed, can also have a significant effect on the quality of the result.

Item URL in elib:https://elib.dlr.de/129573/
Document Type:Conference or Workshop Item (Poster)
Additional Information:©2019 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:InSAR Error Budget for Large Scale Deformation
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
De Zan, Francescofrancesco.dezan (at) dlr.dehttps://orcid.org/0000-0002-1643-2559
Rodriguez Gonzalez, FernandoFernando.RodriguezGonzalez (at) dlr.deUNSPECIFIED
Ansari, HomaHoma.Ansari (at) dlr.dehttps://orcid.org/0000-0002-4549-2497
Gomba, Giorgiogiorgio.gomba (at) dlr.deUNSPECIFIED
Brcic, Ramonramon.brcic (at) dlr.deUNSPECIFIED
Eineder, MichaelMichael.Eineder (at) dlr.dehttps://orcid.org/0000-0001-5068-1324
Date:July 2019
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In ISI Web of Science:No
Page Range:pp. 1-4
Keywords:SAR, InSAR, interferometry, error budget, large scale
Event Title:IGARSS 2019
Event Location:Yokohama, Japan
Event Type:international Conference
Event Dates:28. Jul. - 02. Aug. 2019
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 Tandem-L Vorstudien (old)
Location: Oberpfaffenhofen
Institutes and Institutions:Remote Sensing Technology Institute > SAR Signal Processing
Deposited By: De Zan, Francesco
Deposited On:24 Oct 2019 13:22
Last Modified:28 Oct 2019 10:49

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