In-orbit experiment on the fault-tolerant space computer aboard the satellite Hiten
1996; Institute of Electrical and Electronics Engineers; Volume: 45; Issue: 4 Linguagem: Inglês
10.1109/24.556585
ISSN1558-1721
AutoresTadashi Takano, Tetsuya Yamada, K. Shutoh, Nobuyasu Kanekawa,
Tópico(s)Distributed systems and fault tolerance
ResumoThis paper presents field data from the Hiten onboard computer (OBC) which was launched on January 24 1990, and completed its mission on April 10 1993. The components in the OBC experienced 655 single-event upsets (SEU) caused by cosmic rays; the bursts of SEU were observed after 9 major solar flares. In spite of these SEU, the OBC worked correctly during the mission time, due to the fault tolerance technique, Stepwise Negotiating Voting. The field data reveal a statistical correlation between SEU and solar activities.
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