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Zhu, Xiao Xiang and Bamler, Richard (2011) Let's Do the Time Warp: Multicomponent Nonlinear Motion Estimation in Differential SAR Tomography. IEEE Geoscience and Remote Sensing Letters, 8 (4), pp. 735-739. IEEE - Institute of Electrical and Electronics Engineers. doi: 10.1109/LGRS.2010.2103298. ISSN 1545-598X.
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Official URL: http://ieeexplore.ieee.org/xpls/abs_all.jsp?arnumber=5721788&tag=1
Abstract
In the differential SAR Tomography (D-TomoSAR) system model the motion history appears as a phase term. In the case of nonlinear motion this phase term is no longer linear and, hence, can not be retrieved by spectral estimation. We propose the �time warp� method that rearranges the acquisition dates such that a linear motion is pretended. The multi-component generalization of time warp rewrites the D-TomoSAR system model to an M+1-dimensional standard spectral estimation problem, where M indicates the user defined motion model order and, hence, enables the motion estimation for all possible complex motion models. Both simulations and real data (from TerraSAR-X spotlight) examples demonstrate the applicability of the method and show that linear and periodic (seasonal) motion components can be separated and retrieved.
| Item URL in elib: | https://elib.dlr.de/69176/ | |||||||||
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| Document Type: | Article | |||||||||
| Title: | Let's Do the Time Warp: Multicomponent Nonlinear Motion Estimation in Differential SAR Tomography | |||||||||
| Authors: |
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| Date: | July 2011 | |||||||||
| Journal or Publication Title: | IEEE Geoscience and Remote Sensing Letters | |||||||||
| Refereed publication: | Yes | |||||||||
| Open Access: | Yes | |||||||||
| Gold Open Access: | No | |||||||||
| In SCOPUS: | Yes | |||||||||
| In ISI Web of Science: | Yes | |||||||||
| Volume: | 8 | |||||||||
| DOI : | 10.1109/LGRS.2010.2103298 | |||||||||
| Page Range: | pp. 735-739 | |||||||||
| Publisher: | IEEE - Institute of Electrical and Electronics Engineers | |||||||||
| ISSN: | 1545-598X | |||||||||
| Status: | Published | |||||||||
| Keywords: | Differential SAR tomography, time warp, multi-component nonlinear motion, TerraSAR-X | |||||||||
| 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 - Vorhaben hochauflösende Fernerkundungsverfahren (old) | |||||||||
| Location: | Oberpfaffenhofen | |||||||||
| Institutes and Institutions: | Remote Sensing Technology Institute > SAR Signal Processing | |||||||||
| Deposited By: | Zhu, Xiao Xiang | |||||||||
| Deposited On: | 09 Mar 2011 07:48 | |||||||||
| Last Modified: | 31 Jul 2019 19:31 |
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