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Proceedings Paper

Synchronization And Fault Tolerance In A Distributed Tracker
Author(s): David A. Leighton; Brian K. Hansen
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Paper Abstract

Aerojet has developed a fault tolerant, distributed tracker under the Advanced Onboard Signal Processor (AOSP) Brassboard Demonstration Program for Rome Air Development Center (RADC). The AOSP Brassboard is a fault tolerant, loosely coupled, distributed network of microprocessors. The tracker function correlates several scans of Representative Return data (the input data comes from a scanning IR sensor.) to form tracks which are analyzed to estimate various parameters for the events being tracked. The distributed nature of the AOSP architecture and the stressing performance requirements of the application necessitated a detailed architectural design phase. The key part of the architectural design was the partitioning, which consisted of finding an acceptable allocation of application functions to processors. It was necessary to partition the tracker into several tasks because its stressing memory and throughput requirements could not be satisfied by a single processor from the AOSP Brassboard. The partitioning process had to take into account the extra processing and memory required by fault tolerance. This paper describes the approach to fault tolerance in the distributed tracker used in the AOSP demonstration program.

Paper Details

Date Published: 5 September 1989
PDF: 7 pages
Proc. SPIE 1096, Signal and Data Processing of Small Targets 1989, (5 September 1989); doi: 10.1117/12.960356
Show Author Affiliations
David A. Leighton, GenCorp Aerojet ElectroSystems (United States)
Brian K. Hansen, GenCorp Aerojet ElectroSystems (United States)


Published in SPIE Proceedings Vol. 1096:
Signal and Data Processing of Small Targets 1989
Oliver E. Drummond, Editor(s)

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