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Zhu, Xiao Xiang und 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), Seiten 735-739. IEEE - Institute of Electrical and Electronics Engineers. DOI: 10.1109/LGRS.2010.2103298 ISSN 1545-598X
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Offizielle URL: http://ieeexplore.ieee.org/xpls/abs_all.jsp?arnumber=5721788&tag=1
Kurzfassung
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.
| Dokumentart: | Zeitschriftenbeitrag | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Titel: | Let's Do the Time Warp: Multicomponent Nonlinear Motion Estimation in Differential SAR Tomography | |||||||||
| Autoren: |
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| Datum: | Juli 2011 | |||||||||
| Erschienen in: | IEEE Geoscience and Remote Sensing Letters | |||||||||
| Referierte Publikation: | Ja | |||||||||
| In Open Access: | Nein | |||||||||
| In SCOPUS: | Ja | |||||||||
| In ISI Web of Science: | Ja | |||||||||
| Band: | 8 | |||||||||
| DOI : | 10.1109/LGRS.2010.2103298 | |||||||||
| Seitenbereich: | Seiten 735-739 | |||||||||
| Verlag: | IEEE - Institute of Electrical and Electronics Engineers | |||||||||
| ISSN: | 1545-598X | |||||||||
| Status: | veröffentlicht | |||||||||
| Stichwörter: | Differential SAR tomography, time warp, multi-component nonlinear motion, TerraSAR-X | |||||||||
| HGF - Forschungsbereich: | Luftfahrt, Raumfahrt und Verkehr | |||||||||
| HGF - Programm: | Raumfahrt | |||||||||
| HGF - Programmthema: | Erdbeobachtung | |||||||||
| DLR - Schwerpunkt: | Raumfahrt | |||||||||
| DLR - Forschungsgebiet: | R EO - Erdbeobachtung | |||||||||
| DLR - Teilgebiet (Projekt, Vorhaben): | R - Vorhaben hochauflösende Fernerkundungsverfahren | |||||||||
| Standort: | Oberpfaffenhofen | |||||||||
| Institute & Einrichtungen: | Institut für Methodik der Fernerkundung > SAR-Signalverarbeitung | |||||||||
| Hinterlegt von: | Zhu, Xiao Xiang | |||||||||
| Hinterlegt am: | 09 Mär 2011 07:48 | |||||||||
| Letzte Änderung: | 08 Mär 2018 18:30 |
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