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SAR tomography for spatio-temporal inversion of coherent scatterers in villages of alpine regions

Siddique, M.A. and Strozzi, T. and Hajnsek, Irena and Frey, Othmar (2018) SAR tomography for spatio-temporal inversion of coherent scatterers in villages of alpine regions. In: 38th annual symposium of the IEEE Geoscience and Remote Sensing Society (GRSS), pp. 6099-6102. IEEE. IEEE International Geoscience and Remote Sensing Symposium (IGARSS), 2018-07-22 - 2018-07-27, Valencia, Spain. DOI: 10.1109/IGARSS.2018.8518296 ISBN 978-1-5386-7150-4 ISSN 2153-7003

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Official URL: https://ieeexplore.ieee.org/document/8518296

Abstract

Differential synthetic aperture radar (SAR) tomography allows separation of multiple coherent scatterers interfering in the same range-azimuth resolution cell as well as the estimation of the deformation parameters of each scatterer. In this way, the spatio-temporal tomographic inversion serves as a means to resolve the layover and simultaneously improve deformation sampling. Compared to metropolitan regions with several man-made structures, the prevalence of coherent scatterers in the villages of alpine regions is generally low, while at the same time layovers are widespread due to the ruggedness of the terrain. Moreover, the drastic height variations in the imaged scene necessitate height-dependent compensation of the atmospheric phase delay variations within the tomographic inversion. This paper addresses these concerns while performing experiments on an interferometric stack comprising 33 Cosmo-SkyMed strimap images acquired in the summers between 2008-13 over Matter Valley in the Swiss Alps. The results show improved deformation sampling along the layover-affected mountainside.

Item URL in elib:https://elib.dlr.de/127341/
Document Type:Conference or Workshop Item (Speech)
Title:SAR tomography for spatio-temporal inversion of coherent scatterers in villages of alpine regions
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Siddique, M.A.ETH ZürichUNSPECIFIED
Strozzi, T.UNSPECIFIEDUNSPECIFIED
Hajnsek, IrenaDLR-HR, ETH ZurichUNSPECIFIED
Frey, OthmarETH/GAMMAUNSPECIFIED
Date:2018
Journal or Publication Title:38th annual symposium of the IEEE Geoscience and Remote Sensing Society (GRSS)
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
DOI :10.1109/IGARSS.2018.8518296
Page Range:pp. 6099-6102
Publisher:IEEE
Series Name:IEEE Xplore Digital Library
ISSN:2153-7003
ISBN:978-1-5386-7150-4
Status:Published
Keywords:synthetic aperture radar (SAR) tomography, spatio-temporal inversion
Event Title:IEEE International Geoscience and Remote Sensing Symposium (IGARSS)
Event Location:Valencia, Spain
Event Type:international Conference
Event Dates:2018-07-22 - 2018-07-27
Organizer:IEEE GRSS
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 Sicherheitsrelevante Erdbeobachtung
Location: Oberpfaffenhofen
Institutes and Institutions:Microwaves and Radar Institute > Radar Concepts
Deposited By: Radzuweit, Sibylle
Deposited On:09 May 2019 13:54
Last Modified:31 Jul 2019 20:25

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