Design of a high-quality real-time processor for airborne SAR data

Gordon C. Pryde; K. D. R. Beckett; L. M. Delves; Christopher John Oliver; Richard Geoffrey White

doi:10.1117/12.197545

21 December 1994 Design of a high-quality real-time processor for airborne SAR data

Gordon C. Pryde, K. D. R. Beckett, L. M. Delves, Christopher John Oliver, Richard Geoffrey White

Proceedings Volume 2316, SAR Data Processing for Remote Sensing; (1994) https://doi.org/10.1117/12.197545
Event: Satellite Remote Sensing, 1994, Rome, Italy

Abstract

This paper outlines the principles behind the software architecture design for a real-time processor for airborne SAR data. This processor is implemented on an MIMD parallel computer (the Meiko CS1) using a point-to-point message passing system. The processing algorithms are the result of research by the DRA, Malvern, and are capable of yielding focused, undistorted SAR imagery. Processing functions considered include: initial motion compensation (based on accelerometer data), autofucus with phase correction, and azimuth focusing. Real time processing rates of about 10 MBytes/s are now routinely achieved. We indicate the compromises between processor power, available local memory and communications bandwidth needed to achieve real-time operation. A recent development of the SAR processor has been the addition of a generic post-processing module to allow image interpretation algorithms to operate on the imagery as it is produced. Real-time SAR segmentation has been demonstrated using this facility; ports of other algorithms are planned.

Citation Download Citation

Gordon C. Pryde, K. D. R. Beckett, L. M. Delves, Christopher John Oliver, and Richard Geoffrey White "Design of a high-quality real-time processor for airborne SAR data", Proc. SPIE 2316, SAR Data Processing for Remote Sensing, (21 December 1994); https://doi.org/10.1117/12.197545

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