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The Reliability Impact of Mission Abort Strategies on Redundant Flight Computer Systems

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2 Author(s)
Filene, R.J. ; C. S. Draper Laboratory, Inc. ; Daly, W.M.

This correspondence presents a reliability model for a redundant flight computer system with. standby sparing, taking into account various mission abort strategies. A mission rule to initiate a mission abort after a predetermined number of detected computer failures and to return to earth with the remaining computers is shown to result in: 1) little improvement of crew safety unless computer error coverage is nearly perfect, and 2) significant degradation in mission success whenever coverage is high.

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Computers, IEEE Transactions on  (Volume:C-23 ,  Issue: 7 )