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/ | ||||||||||||
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Document Type: | Conference or Workshop Item (Speech) | ||||||||||||
Title: | TanDEM-X DSM uncertainty measures and demonstrations | ||||||||||||
Authors: |
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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 - Earth Observation | ||||||||||||
DLR - Research theme (Project): | R - Projekt TanDEM-X (old) | ||||||||||||
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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