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A distributed approach to efficient time-domain SAR processing

Reigber, Andreas und Jäger, Marc und Dietzsch, Andreas und Hänsch, Ronny und Weber, Michael und Przybyl, Heiko und Prats, Pau (2007) A distributed approach to efficient time-domain SAR processing. In: Proceedings of the IEEE Geoscience and Remote Sensing Symposium (IGARSS). IEEE. IEEE Geoscience and Remote Sensing Symposium (IGARSS), 2007-07-23 - 2007-07-27, Barcelona, Spain.

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Kurzfassung

This paper presents a distributed approach for timedomain focusing, which significantly enhances the overall efficiency by distributing the computational load across a (potentially large) number of networked computers. The system described includes the so-called master, responsible for pre-processing, the distribution of fragments of raw-data data and the collection of processed image fragments. Fragments of raw-data are passed to so-called slaves, any number of which can be connected to the master, which are responsible for the focusing itself. Master and slave actively communicate over the network to organise the entire process in a scalable manner. In this way, time-domain processing can be accelerated by a factor that is virtually inear in the number of participating slaves. This paper summarises the urrent status of software development, realised in a platform-independent way using the IDL and Java languages. Additionally, some preliminary evaluations of performance, scalability and the required network infrastructure are given. Some examples of SAR data, acquired by the airborne sensor E-SAR of DLR, and processed with the system described are shown.

Dokumentart:Konferenzbeitrag (Paper, Poster)
Zusätzliche Informationen:©2007 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:A distributed approach to efficient time-domain SAR processing
Autoren:
AutorenInstitution oder E-Mail-Adresse der Autoren
Reigber, AndreasBerlin University of Technology (TUB)
Jäger, MarcBerlin University of Technology (TUB)
Dietzsch, AndreasBerlin University of Technology (TUB)
Hänsch, RonnyBerlin University of Technology (TUB)
Weber, MichaelBerlin University of Technology (TUB)
Przybyl, HeikoBerlin University of Technology (TUB)
Prats, PauNICHT SPEZIFIZIERT
Datum:Juli 2007
Erschienen in:Proceedings of the IEEE Geoscience and Remote Sensing Symposium (IGARSS)
Referierte Publikation:Nein
In ISI Web of Science:Nein
Verlag:IEEE
Status:veröffentlicht
Stichwörter:SAR processing, time-domain processing, distributed processing, motion compensation
Veranstaltungstitel:IEEE Geoscience and Remote Sensing Symposium (IGARSS)
Veranstaltungsort:Barcelona, Spain
Veranstaltungsart:internationale Konferenz
Veranstaltungsdatum:2007-07-23 - 2007-07-27
Veranstalter :IEEE
HGF - Forschungsbereich:Verkehr und Weltraum (alt)
HGF - Programm:Weltraum (alt)
HGF - Programmthema:W EO - Erdbeobachtung
DLR - Schwerpunkt:Weltraum
DLR - Forschungsgebiet:W EO - Erdbeobachtung
DLR - Teilgebiet (Projekt, Vorhaben):W - Vorhaben Flugzeug-SAR (alt)
Standort: Oberpfaffenhofen
Institute & Einrichtungen:Institut für Hochfrequenztechnik und Radarsysteme
Institut für Hochfrequenztechnik und Radarsysteme > SAR-Technologie
Hinterlegt von: Dr. Pau Prats
Hinterlegt am:31 Jul 2007
Letzte Änderung:12 Dez 2013 20:26

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