Topography and Displacement of Polar Glaciers from Multi-Temporal SAR Interferograms: Potentials, Error Analysis and Validation
Meyer, Franz Josef (2004) Topography and Displacement of Polar Glaciers from Multi-Temporal SAR Interferograms: Potentials, Error Analysis and Validation. In: International Archives of Photogrammetry and Remote Sensing, Vol. 35, Part B3, pp. 1004-1009. ISPRS04, Istanbul,12. - 23.07.2004.
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This paper describes a new technique to simultaneously estimate topography and motion of polar glaciers from multi-temporal SAR interferograms. The approach is based on a combination of several SAR interferograms in a least-squares adjustment using the Gauss- Markov model. For connecting the multi-temporal data sets, a spatio-temporal model is proposed that describes the properties of the surface and its temporal evolution. Rigorous mathematical modeling of functional and stochastic relations allows for a systematic description of the processing chain. It also is an optimal tool to parameterize the statistics of every individual processing step, and the propagation of errors into the _nal results. Within the paper theoretical standard deviations of the unknowns are calculated depending on the con_guration of the data sets. The in_uence of gross errors in the observations and the effect of non-modeled error sources on the unknowns are estimated. A validation of the approach based on real data concludes the paper.
|Document Type:||Conference or Workshop Item (Paper)|
|Title:||Topography and Displacement of Polar Glaciers from Multi-Temporal SAR Interferograms: Potentials, Error Analysis and Validation|
|Journal or Publication Title:||International Archives of Photogrammetry and Remote Sensing|
|Volume:||Vol. 35, Part B3|
|Page Range:||pp. 1004-1009|
|Keywords:||SAR, Interferometer, Adjustment, Algorithms, Radar, Modelling, Multitemporal, Environment|
|Event Title:||ISPRS04, Istanbul,12. - 23.07.2004|
|Organizer:||International Society for Photogrammetry and Remote Sensing|
|HGF - Research field:||Aeronautics, Space and Transport|
|HGF - Program:||Space|
|HGF - Program Themes:||W EO - Erdbeobachtung|
|DLR - Research area:||Space|
|DLR - Program:||W EO - Erdbeobachtung|
|DLR - Research theme (Project):||UNSPECIFIED|
|Institutes and Institutions:||Remote Sensing Technology Institute|
|Deposited By:||Cornelia Roehl|
|Deposited On:||20 Feb 2006|
|Last Modified:||06 Jan 2010 22:35|
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