Reigber, Andreas and Jäger, Marc and Dietzsch, Andreas and Hänsch, Ronny and Weber, Michael and Przybyl, Heiko and 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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Abstract
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.
Item URL in elib: | https://elib.dlr.de/50368/ | ||||||||||||||||||||||||||||||||
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Document Type: | Conference or Workshop Item (Paper, Poster) | ||||||||||||||||||||||||||||||||
Additional Information: | ©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. | ||||||||||||||||||||||||||||||||
Title: | A distributed approach to efficient time-domain SAR processing | ||||||||||||||||||||||||||||||||
Authors: |
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Date: | July 2007 | ||||||||||||||||||||||||||||||||
Journal or Publication Title: | Proceedings of the IEEE Geoscience and Remote Sensing Symposium (IGARSS) | ||||||||||||||||||||||||||||||||
Refereed publication: | No | ||||||||||||||||||||||||||||||||
Open Access: | Yes | ||||||||||||||||||||||||||||||||
Gold Open Access: | No | ||||||||||||||||||||||||||||||||
In SCOPUS: | No | ||||||||||||||||||||||||||||||||
In ISI Web of Science: | No | ||||||||||||||||||||||||||||||||
Publisher: | IEEE | ||||||||||||||||||||||||||||||||
Status: | Published | ||||||||||||||||||||||||||||||||
Keywords: | SAR processing, time-domain processing, distributed processing, motion compensation | ||||||||||||||||||||||||||||||||
Event Title: | IEEE Geoscience and Remote Sensing Symposium (IGARSS) | ||||||||||||||||||||||||||||||||
Event Location: | Barcelona, Spain | ||||||||||||||||||||||||||||||||
Event Type: | international Conference | ||||||||||||||||||||||||||||||||
Event Dates: | 2007-07-23 - 2007-07-27 | ||||||||||||||||||||||||||||||||
Organizer: | IEEE | ||||||||||||||||||||||||||||||||
HGF - Research field: | Aeronautics, Space and Transport (old) | ||||||||||||||||||||||||||||||||
HGF - Program: | Space (old) | ||||||||||||||||||||||||||||||||
HGF - Program Themes: | W EO - Erdbeobachtung | ||||||||||||||||||||||||||||||||
DLR - Research area: | Space | ||||||||||||||||||||||||||||||||
DLR - Program: | W EO - Erdbeobachtung | ||||||||||||||||||||||||||||||||
DLR - Research theme (Project): | W - Vorhaben Flugzeug-SAR (old) | ||||||||||||||||||||||||||||||||
Location: | Oberpfaffenhofen | ||||||||||||||||||||||||||||||||
Institutes and Institutions: | Microwaves and Radar Institute Microwaves and Radar Institute > SAR Technology | ||||||||||||||||||||||||||||||||
Deposited By: | Prats, Dr. Pau | ||||||||||||||||||||||||||||||||
Deposited On: | 31 Jul 2007 | ||||||||||||||||||||||||||||||||
Last Modified: | 31 Jul 2019 19:20 |
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