21 December 1994 Design of a high-quality real-time processor for airborne SAR data
Author Affiliations +
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.
© (1994) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Gordon C. Pryde, K. D. R. Beckett, L. M. Delves, Christopher John Oliver, 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); doi: 10.1117/12.197545; https://doi.org/10.1117/12.197545
PROCEEDINGS
12 PAGES


SHARE
RELATED CONTENT

Design of a real-time high-quality SAR processor
Proceedings of SPIE (June 09 1994)
Edge detection in SAR segmentation
Proceedings of SPIE (December 21 1994)
MUM (Merge Using Moments) segmentation for SAR images
Proceedings of SPIE (December 21 1994)
Phase unwrapping through least-squares approximation
Proceedings of SPIE (May 19 1992)

Back to Top