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SAR Interferometry for Volcano Monitoring: 3D-PSI Analysis and Mitigation of Atmospheric Refractivity.

Cong, Xiaoying (2014) SAR Interferometry for Volcano Monitoring: 3D-PSI Analysis and Mitigation of Atmospheric Refractivity. Dissertation, Technische Universität München.

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Official URL: http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:91-diss-20140606-1198042-0-8

Abstract

Space-borne synthetic aperture radar interferometry provides a powerful tool for the monitoring of active volcanoes by surveying the surface changes at a theoretical accuracy in the millimeter-range. This accuracy is practically limited by effects such as temporal decorrelation, atmospheric distortions or phase unwrapping errors. The main concern of this thesis is to develop advanced SAR interferometric techniques in order retrieve reliable surface deformation signals. The persistent scatterer interferometry multi-temporal method is investigated and demonstrated for rocky volcanoes using TerraSAR-X high resolution SAR data. An effective method for the mitigation of the atmospheric delay effect due to vertical stratification in interferometric phase measurements is developed: the direct integration method. A multi-track fusion algorithm based on the iterative closest point algorithm is proposed for the geometrical fusion of PS clouds from different viewing geometries in non-urban areas.

Item URL in elib:https://elib.dlr.de/93383/
Document Type:Thesis (Dissertation)
Title:SAR Interferometry for Volcano Monitoring: 3D-PSI Analysis and Mitigation of Atmospheric Refractivity.
Authors:
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Cong, XiaoyingTUM-LMFUNSPECIFIED
Date:6 June 2014
Refereed publication:No
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Number of Pages:174
Status:Published
Keywords:SAR Interferometry, atmospheric refractivity, volcanic deformation, geometrical fusion, persistent scatterer interferometry
Institution:Technische Universität München
Department:Chair of Remote Sensing Technology
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 hochauflösende Fernerkundungsverfahren (old)
Location: Oberpfaffenhofen
Institutes and Institutions:Remote Sensing Technology Institute > SAR Signal Processing
Deposited By: Cong, Xiao Ying
Deposited On:10 Dec 2014 09:55
Last Modified:11 Dec 2014 09:24

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