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TanDEM-X DSM uncertainty measures and demonstrations

Rossi, Cristian and Fritz, Thomas and Eineder, Michael (2015) TanDEM-X DSM uncertainty measures and demonstrations. IGARSS 2015, Milano, Italy.

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Abstract

SAR interferometry is a well-known technique to produce digital surface models (DSM). In the global scale, the qual-ity of these models significantly increased with the use of bistatic systems as for the TanDEM-X mission. DSM uncer-tainty can be measured in two scales: a global and a local one. A global scale analysis involves measures for the com-plete take, characterizing the whole correctness with a single parameter. A local scale analysis enters instead in the single elevation model cell, evaluating the quality obtained by dif-ferent terrains and media present in the take. A coherence analysis is a typical measure for InSAR models. Globally, a simple average gives an overall quality measure hint. Locally, it provides a measure of the DSM pixel height error. Unfor-tunately, this measure lacks in several aspects as not consid-ering unwrapping errors and not being valid for certain types of scattering. In this paper, various strategies for assessing elevation accuracy methods and demonstrate the different ca-pabilities of the bistatic TanDEM-X system are proposed for variegated terrain types.

Item URL in elib:https://elib.dlr.de/97810/
Document Type:Conference or Workshop Item (Speech)
Title:TanDEM-X DSM uncertainty measures and demonstrations
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Rossi, Cristiancristian.rossi (at) dlr.deUNSPECIFIED
Fritz, Thomasthomas.fritz (at) dlr.deUNSPECIFIED
Eineder, Michaelmichael.eineder (at) dlr.deUNSPECIFIED
Date:2015
Refereed publication:No
Open Access:Yes
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Page Range:pp. 3830-3833
Status:Published
Keywords:TanDEM-X, uncertainty, DEM, slope, aspect
Event Title:IGARSS 2015
Event Location:Milano, Italy
Event Type:international Conference
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 - Projekt TanDEM-X
Location: Oberpfaffenhofen
Institutes and Institutions:Remote Sensing Technology Institute > SAR Signal Processing
Deposited By: Rossi, Cristian
Deposited On:13 Aug 2015 18:10
Last Modified:31 Jul 2019 19:54

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