Protection of Instrument Control Computers against Soft and Hard Errors and Cosmic Ray Effects (1989)
BibTeX
@MISC{Leppälä89protectionof,
author = {Kari Leppälä and Kirgiz Ssr and Raimo Verkasalo},
title = {Protection of Instrument Control Computers against Soft and Hard Errors and Cosmic Ray Effects},
year = {1989}
}
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Abstract
This paper deals with parts selection for radiative space environment, and selection of low-overhead redundancy concepts. Special attention is paid to cosmic ray induced single envent upsets in digital logic, because onboard protection methods are not always efficient. Functional requirements for onboard software are considered, especially for conditions where temporary errors, caused by single event upsets, are to be excepted. Design solutions for two space control computers are reviewed: Promics-3 control computer for the soviet Interball mission, and ERNE control computer for the future SOHO mission of ESA. 1. Introduction
