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An efficient SAR parallel processor

机译:高效的SAR并行处理器

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摘要

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.
机译:提出了一种并行体系结构,该体系结构是为基于适当的二维快速傅立叶变换(FFT)码的合成孔径雷达(SAR)处理算法特别设计的。简要概述了该算法,并针对一维情况给出了FFT代码,尽管可以将所有结果立即推广到double FFT。描述了由在每个节点上带有晶片机的环形网组成的计算机体系结构。推导了网络计算时间与节点数的参数表达式。该体系结构可以大大减少处理时间,并保持精加工的准确性和灵活性。

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