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SAR tomography as an add-on to PSI for improved deformation sampling in urban areas: A quality assessment

Siddique, M.A. and Wegmöller, U. and Hajnsek, Irena and Frey, Othmar (2016) SAR tomography as an add-on to PSI for improved deformation sampling in urban areas: A quality assessment. European Conference on Synthetic Aperture Radar (EUSAR, 2016-06-06 - 2016-06-09, Hamburg, Germany.

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Abstract

Abstract Persistent scatterer interferometry (PSI) typically rejects layovers. Therefore, layover-Affected urban areas may suffer from inadequate deformation sampling. SAR tomography, when used as an add-on to PSI, reveals additional deformation samples by resolving layovers. In this paper we quantify the relative gain in deformation sampling, while taking into account the quality of the additional (double) scatterers in terms of root-mean-square (RMS) phase deviation. We experiment on an interferometric stack of 50 TerraSAR-X stripmap images acquired over the city of Barcelona. The results show a tradeoff between the gain and the quality of the detected scatterers. For the observed urban area, we obtain a gain of 9.8% while the RMS phase deviation for 99% of the detected double scatterers is less than 1.1 radians. © VDE VERLAG GMBH · Berlin · Offenbach.

Item URL in elib:https://elib.dlr.de/110697/
Document Type:Conference or Workshop Item (Speech)
Title:SAR tomography as an add-on to PSI for improved deformation sampling in urban areas: A quality assessment
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Siddique, M.A.ETH ZürichUNSPECIFIED
Wegmöller, U.Gamma Remote SensingUNSPECIFIED
Hajnsek, IrenaUNSPECIFIEDUNSPECIFIED
Frey, Othmareth/gammaUNSPECIFIED
Date:2016
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Status:Published
Keywords:Deformation; Interferometry; Radar; Tomography Interferometric stacks; Persistent scatterer interferometry (PSI); Phase deviations; Quality assessment; Root Mean Square; Sar tomography (SARTom); TerraSAR-X; Urban areas
Event Title:European Conference on Synthetic Aperture Radar (EUSAR
Event Location:Hamburg, Germany
Event Type:international Conference
Event Dates:2016-06-06 - 2016-06-09
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 - SAR-Methodology
Location: Oberpfaffenhofen
Institutes and Institutions:Microwaves and Radar Institute > SAR Technology
Deposited By: Bauer, Robert
Deposited On:13 Jan 2017 14:41
Last Modified:13 Jan 2017 14:41

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