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Paper Details

A Fault-Tolerant On-board Computer for Space Applications

Authors: Sousa Castro, Helano de, Jr, João Reinaldo Imbiriba, Silveira, Jarbas Aryel N., Santiago, Valdivino, Monteiro, Antônio Miguel Vieira


The first Brazilian microsatellite will be launched at the middle of 1998. The on-board computer, named Trisputer, will play a major part in the mission, since it will perform essential on-board functions, such, as guidance, control of the on-board instrumentation, telemetry/telecommand, and control of some on-board scientific experiments. The Trisputer is a fault-tolerant multiprocessor computer with a high reliability, when compared to such systems as TMR, and Duplex. This paper describes the conception and implementation of the hardware of this computer, as well as it shows its reliability model.


Proceedings of WoTUG-21: Architectures, Languages and Patterns for Parallel and Distributed Applications, Peter H. Welch, André W. P. Bakkers, 1998, pp 219 - 230 published by IOS Press, Amsterdam

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