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SAR tomography using staring and high-resolution spotlight data from the TanDEM-X pursuit monostatic mode

Ge, Nan und Zhu, Xiao Xiang (2015) SAR tomography using staring and high-resolution spotlight data from the TanDEM-X pursuit monostatic mode. IGARSS 2015, 2015-07-26 - 2015-07-31, Mailand, Italien.

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Offizielle URL: http://www.igarss2015.org/Papers/viewpapers.asp?papernum=7074

Kurzfassung

Synthetic aperture radar (SAR) tomography has been intensively used in urban scenarios to reconstruct the elevation position of each coherent scatterer overlaid within a 2-dimensional focused azimuth-range pixel [1] [2]. For this purpose, observations sampled at different spatial frequencies w.r.t. a reference ‘master’ scene are needed. Modern algorithms, e.g., SL1MMER proposed by Zhu and Bamler (2010), have been developed to achieve both robustness and super-resolution. Due to the intrinsic highly heterogeneous nature of urban areas with buildings and other infrastructures, SAR imaging mode with the highest resolution possible is usually favored. This insures a small number of scatterers inside each resolution cell and thus increases the probability of successful recovery. However, data takes over time seem to become obsolete, as older satellites are replaced by their successors which are equipped with upgraded sensors. Besides, new methodologies emerge which contribute to draining more performance out of available hardware. The former could be that the German satellite TerraSAR-X retires and hands its job over to the foreseen Next Generation TerraSAR-X HD, which will possibly be characterized by larger range bandwidth, while steering the radar beam more sharply to synthesize a larger aperture could be an example for the latter. Anyway, SAR data with the same resolution will be discontinued, as long as better resolution is desired. Naturally, the same problem could also arise purely due to the change of public interest within the life span of a satellite. In this abstract, we propose a new method to jointly carry out tomographic processing on SAR data from the same pipeline but with different resolutions. The data set used in this study will be described in Section 2. Section 3 is dedicated to the demonstration of the mathematical model. An outlook will be given in Section 4.

elib-URL des Eintrags:https://elib.dlr.de/94572/
Dokumentart:Konferenzbeitrag (Vortrag)
Titel:SAR tomography using staring and high-resolution spotlight data from the TanDEM-X pursuit monostatic mode
Autoren:
AutorenInstitution oder E-Mail-AdresseAutoren-ORCID-iDORCID Put Code
Ge, NanDLR-IMFNICHT SPEZIFIZIERTNICHT SPEZIFIZIERT
Zhu, Xiao XiangDLR-IMF/TUM-LMFNICHT SPEZIFIZIERTNICHT SPEZIFIZIERT
Datum:2015
Referierte Publikation:Nein
Open Access:Ja
Gold Open Access:Nein
In SCOPUS:Nein
In ISI Web of Science:Nein
Seitenbereich:Seiten 1-4
Status:veröffentlicht
Stichwörter:Synthetic aperture radar, Tomography, Staring spotlight, High-resolution spotlight, TanDEM-X, Pursuit monostatic mode
Veranstaltungstitel:IGARSS 2015
Veranstaltungsort:Mailand, Italien
Veranstaltungsart:internationale Konferenz
Veranstaltungsbeginn:26 Juli 2015
Veranstaltungsende:31 Juli 2015
Veranstalter :IEEE Geoscience and Remote Sensing Society
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 (alt)
Standort: Oberpfaffenhofen
Institute & Einrichtungen:Institut für Methodik der Fernerkundung > SAR-Signalverarbeitung
Hinterlegt von: Ge, Nan
Hinterlegt am:14 Jan 2015 09:02
Letzte Änderung:24 Apr 2024 20:00

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