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SDCM
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[GPS]
差分矫正与监控系统 (
System for Differential Corrections and Monitoring
) 的首字母缩略词。 由俄罗斯航天局 (Roscosmos) 运营的区域卫星增强系统 (SBAS)，旨在监测并提供矫正数据，并提高俄罗斯空域内 GLONASS 的精度。
另请参阅
GLONASS
GPS 增强
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