NDLI: Development of a multiple adjustment processor for generation of DEMs over large areas using SAR data

Content Provider	IEEE Xplore Digital Library
Author	Mora, O. Perez, F. Pala, V. Arbiol, R.
Copyright Year	2003
Description	Author affiliation: Inst. Cartografic de Catalunya, Barcelona, Spain (Mora, O.; Perez, F.; Pala, V.; Arbiol, R.)
Abstract	During the last years orbital SAR data have been acquired for almost every place in the world. This fact can be used for generating large digital elevation models (DEM) of remote areas using SAR interferometry (InSAR). Nevertheless, the generation of large quality DEMs using this technique presents several problems, such as temporal decorrelation (even with a one-day temporal gap between acquisitions), baseline errors or SAR parameters calibration. These factors can dramatically degrade the quality of the final DEM and, therefore, advanced InSAR techniques are needed to minimize or compensate for these errors. In this paper the Institut Cartogra/spl grave/fic de Catalunya (ICC) presents a robust method for generating very large, high quality DEMs using a set of SAR interferograms. The method is based on a simultaneous multiple adjustment of critical parameters for the SAR images using three types of phase-registered points: control points, known-height and corresponding points. Results for the area of Tierra del Fuego (Argentina) are also presented.
Starting Page	2326
Ending Page	2328
File Size	1595136
Page Count	3
File Format	PDF
ISBN	0780379292
DOI	10.1109/IGARSS.2003.1294430
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2003-07-21
Publisher Place	France
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Synthetic aperture radar interferometry Phase estimation Digital elevation models Decorrelation Calibration Degradation Robustness Satellites Earth Databases
Content Type	Text
Resource Type	Article

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
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9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

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