Mapping the synthetic aperture radar signal processor on a distributed-memory MIMD architecture

This paper describes the processing of raw data, gathered with a synthetic aperture radar (SAR), by the parallel computer nCUBE 2 to form an electromagnetic image of the sensed scene. The initial goal of our work has been the evaluation of the use of a Distributed-Memory Multiple-Instruction stream...

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Bibliographic Details
Published in:Parallel computing Vol. 22; no. 5; pp. 761 - 784
Main Authors: Fabbretti, G., Farina, A., Laforenza, D., Vinelli, F.
Format: Journal Article
Language:English
Published: Elsevier B.V 1996
Subjects:
Butterfly
FFT
Hypercube architecture
Implementation features
nCUBE2
Parallel algorithms
Performance results
SAR processing
nCUBE2
Butterfly
FFT
Implementation features
Performance results
SAR processing
Parallel algorithms
Hypercube architecture
ISSN:0167-8191, 1872-7336
Online Access:Get full text
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Summary:This paper describes the processing of raw data, gathered with a synthetic aperture radar (SAR), by the parallel computer nCUBE 2 to form an electromagnetic image of the sensed scene. The initial goal of our work has been the evaluation of the use of a Distributed-Memory Multiple-Instruction stream Multiple-Data stream (DM-MIMD) parallel computer for SAR processing, with respect to the use of a conventional monoprocessor RISC workstation. To meet this goal, a study of some algorithms of the radix-2 n class for the one-dimensional (1D) and two-dimensional (2D) FFTs has been conducted. A good algorithm candidate to be parallelized and used as kernel component of our SAR processor has been selected.
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ISSN:0167-8191
1872-7336
DOI:10.1016/0167-8191(96)00013-0