An efficient SAR parallel processor

Author

Franceschetti, Giorgio ; Mazzeo, Antonino ; Mazzocca, Nicola ; Pascazio, Vito ; Schirinzi, Gilda

Author_Institution

IRECE, Naples, Italy

Volume

27

Issue

2

fYear

1991

fDate

3/1/1991 12:00:00 AM

Firstpage

343

Lastpage

353

Abstract

A parallel architecture especially designed for a synthetic-aperture-radar (SAR) processing algorithm based on an appropriate two-dimensional fast Fourier transform (FFT) code is presented. The algorithm is briefly summarized, and the FFT code is given for the one-dimensional case, although all results can be immediately generalized to the double FFT. The computer architecture, which consists of a toroidal net with transputers on each node, is described. Parametric expressions for the computational time of the net versus the number of nodes are derived. The architecture allows drastic reduction of the processing time, preserving elaboration accuracy and flexibility

Keywords

computerised signal processing; fast Fourier transforms; parallel architectures; radar theory; transputers; FFT; SAR parallel processor; computational time; one-dimensional; parallel architecture; toroidal net; transputers; two-dimensional fast Fourier transform; Algorithm design and analysis; Application software; Computer architecture; Computer science; Filters; Flexible printed circuits; Fourier transforms; Parallel architectures; Remote sensing; Synthetic aperture radar;

fLanguage

English

Journal_Title

Aerospace and Electronic Systems, IEEE Transactions on

Publisher

ieee

ISSN

0018-9251

Type

jour

DOI

10.1109/7.78308

Filename

78308