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Multisignal Compressed Sensing for Polarimetric SAR Tomography

Aguilera, Esteban und Nannini, Matteo und Reigber, Andreas (2012) Multisignal Compressed Sensing for Polarimetric SAR Tomography. IEEE Geoscience and Remote Sensing Letters, 9 (5), Seiten 871-875. IEEE.

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Kurzfassung

In recent years, 3-D imaging by means of polarimetric synthetic aperture radar (SAR) sensors has become a field of intensive research. In SAR tomography, the vertical reflectivity function for every azimuth�range pixel is usually recovered by processing data collected using a defined repeat-pass acquisition geometry. The most common approach is to generate a synthetic aperture in the elevation direction through imaging from a large number of parallel tracks. This imaging technique is appealing, since it is very simple. However, it has the drawback that large temporal baselines can severely affect the reconstruction. In an attempt to reduce the number of parallel tracks, we propose a new approach that exploits structural correlations between neighboring azimuth�range pixels and/or polarimetric channels. As a matter of fact, this can be done under the framework of distributed compressed sensing (CS) (DCS), which stems from CS theory, thus also exploiting sparsity in the tomographic signal. Finally, results demonstrating the potential of the DCS methodology will be validated by using fully polarimetric L-band data acquired by the E-SAR sensor of the German Aerospace Center (DLR).

Dokumentart:Zeitschriftenbeitrag
Zusätzliche Informationen:Ã�©2012 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.
Titel:Multisignal Compressed Sensing for Polarimetric SAR Tomography
Autoren:
AutorenInstitution oder E-Mail-Adresse der Autoren
Aguilera, EstebanNICHT SPEZIFIZIERT
Nannini, MatteoNICHT SPEZIFIZIERT
Reigber, AndreasNICHT SPEZIFIZIERT
Datum:September 2012
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:9
Seitenbereich:Seiten 871-875
Verlag:IEEE
Status:veröffentlicht
Stichwörter:Compressed sensing (CS), distributed compressed sensing (DCS), polarimetry, synthetic aperture radar (SAR) tomography
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 Flugzeug-SAR
Standort: Oberpfaffenhofen
Institute & Einrichtungen:Institut für Hochfrequenztechnik und Radarsysteme
Institut für Hochfrequenztechnik und Radarsysteme > SAR-Technologie
Hinterlegt von: Esteban Pedro Aguilera
Hinterlegt am:16 Mär 2012 10:16
Letzte Änderung:12 Dez 2013 21:38

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