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Architectural challenges in memory-intensive, real-time image forming
Halmstad University, School of Information Science, Computer and Electrical Engineering (IDE), Halmstad Embedded and Intelligent Systems Research (EIS), Centre for Research on Embedded Systems (CERES).
Halmstad University, School of Information Science, Computer and Electrical Engineering (IDE).
Saab Microwave Systems, Gothenburg, Sweden.
Saab Microwave Systems, Gothenburg, Sweden.
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2007 (English)In: International Conference on Parallel Processing, 2007. ICPP 2007 / [ed] Li Jiandong, IEEE Press, 2007, 35-45 p.Conference paper, (Refereed)
Abstract [en]

The real-time image forming in future, high-end synthetic aperture radar systems is an example of an application that puts new demands on computer architectures. The initial question is whether it is at all possible to meet the demands with state-of-the-art technology or foreseeable new technology. It is therefore crucial to understand the computational flow, with its associated memory, bandwidth and processing demands. In this paper we analyse the application in order to, primarily, understand the algorithms and identify the challenges they present on a basic architectural level. The processing in the radar system is characterized by working on huge data sets, having complex memory access patterns, and doing real-time compensations for flight path errors. We propose algorithm solutions and execution schemes in interplay with a two-level (coarse-grain/fine-grain) system parallelization approach, and we provide approximate models on which the demands are quantified. In particular, we consider the choice of method for the performance-intensive data interpolations. This choice presents a trade-off problem between computational performance and size of working memory. The results of this "upstream" study will serve as a basis for further, more detailed architecture studies.

Place, publisher, year, edition, pages
IEEE Press, 2007. 35-45 p.
Series
International Conference on Parallel Processing, ISSN 0190-3918 ; 2007
Keyword [en]
Real-Time Image Forming
National Category
Engineering and Technology
Identifiers
URN: urn:nbn:se:hh:diva-1960DOI: 10.1109/ICPP.2007.18ISI: 000267695300035Scopus ID: 2-s2.0-47249137450Local ID: 2082/2355ISBN: 978-0-7695-2933-2 OAI: oai:DiVA.org:hh-1960DiVA: diva2:239178
Note

©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.

Available from: 2008-09-26 Created: 2008-09-26 Last updated: 2014-08-21Bibliographically approved

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Åhlander, AndersHellsten, H.Svensson, Bertil
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CiteExportLink to record
Permanent link

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Citation style
  • apa
  • harvard1
  • ieee
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  • vancouver
  • Other style
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Language
  • de-DE
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  • Other locale
More languages
Output format
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