NDLI: DEM Error Correction in InSAR Time Series

Content Provider	IEEE Xplore Digital Library
Author	Fattahi, H. Amelung, F.
Copyright Year	1980
Abstract	We present a mathematical formulation for the phase due to the errors in digital elevation models (DEMs) in synthetic aperture radar (SAR) interferometry (InSAR) time series obtained by the small baseline (SB) or the small baseline subset method. We show that the effect of the DEM error in the estimated displacement is proportional to the perpendicular baseline history of the set of SAR acquisitions. This effect at a given epoch is proportional to the perpendicular baseline between the SAR acquisition at that epoch and the reference acquisition. Therefore, the DEM error can significantly affect the time-series results even if SB interferograms are used. We propose a new method for DEM error correction of InSAR time series, which operates in the time domain after inversion of the network of interferograms for the displacement time series. This is in contrast to the method of Berardino (2002) in which the DEM error is estimated in the interferogram domain. We show the effectiveness of this method using simulated InSAR data. We apply the new method to Fernandina volcano in the Galapagos Islands and show that the proposed DEM error correction improves the estimated displacement significantly.
Sponsorship	IEEE Geoscience and Remote Sensing Society IEEE URSI
Starting Page	4249
Ending Page	4259
Page Count	11
File Size	642231
File Format	PDF
ISSN	01962892
Volume Number	51
Issue Number	7
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2013-07-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	History Error correction Time series analysis Synthetic aperture radar Atmospheric modeling Deformable models Time domain analysis time series Baseline history digital elevation model (DEM) error synthetic aperture radar (SAR) interferometry (InSAR)
Content Type	Text
Resource Type	Article
Subject	Earth and Planetary Sciences Electrical and Electronic Engineering

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

DEM Error Retrieval by Analyzing Time Series of Differential Interferograms

An Error Prediction Framework for Interferometric SAR Data

Analysis of the InSAR flattening errors and their influence on DEM reconstruction

Definition of ICESat Selection Criteria for Their Use as Height References for TanDEM-X

InSAR Deformation Time Series Using an $L_{1}$ -Norm Small-Baseline Approach

DEM Reconstruction Accuracy in Multichannel SAR Interferometry

Geometrical SAR image registration

Integration of InSAR Time-Series Analysis and Water-Vapor Correction for Mapping Postseismic Motion After the 2003 Bam (Iran) Earthquake

Development of the TanDEM-X Calibration Concept: Analysis of Systematic Errors

DEM Error Correction in InSAR Time Series

Similar Documents

DEM Error Retrieval by Analyzing Time Series of Differential Interferograms

An Error Prediction Framework for Interferometric SAR Data

Analysis of the InSAR flattening errors and their influence on DEM reconstruction

Definition of ICESat Selection Criteria for Their Use as Height References for TanDEM-X

InSAR Deformation Time Series Using an $L_{1}$ -Norm Small-Baseline Approach

DEM Reconstruction Accuracy in Multichannel SAR Interferometry

Geometrical SAR image registration

Integration of InSAR Time-Series Analysis and Water-Vapor Correction for Mapping Postseismic Motion After the 2003 Bam (Iran) Earthquake

Development of the TanDEM-X Calibration Concept: Analysis of Systematic Errors

DEM Error Correction in InSAR Time Series