Arase衛星における電磁適合性について

Abstract

Electromagnetic compatibility (EMC) is an important concept in keeping performance and functions of electronic devices without any degradation due to external noise. The EMC criteria in scientific satellites is decided depending on payloads of satellites. In particular, noise levels to be allowed are quite low in missions to explore space electromagnetic environments, because their targets to observe are extremely weak magnetic fields and electromagnetic waves. Each onboard instrument is required to suppress its emitting noise levels to be below the levels regulated by the EMC criteria. The present paper describes the introduction of the EMC criteria, EMC measurements on the ground and results on the orbit for the Arase satellite, which is exploring electromagnetic environments in the geospace region.