超小型人工衛星におけるソフトエラー対策

摘要

Semiconductor logic devices on a satellite are known to have “soft error” by charged particles in the space. Soft errorhave three kinds of phenomena, i.e., “SEU(Single Event Upset)” , “MBU(Multiple Bit Upset)” and “SET(Single EventTransient)”. This paper describes soft error mitigation technique for nano-satellite. The proposed system is showneffective with simulation by fault injection method.