Abstract
Abstract NGII(National Geographic Information Institute) has installed the fist GNSS(Global Navigation Satellite System) CORS(Continuously Operating Reference Station) SUWN for DGPS in 1995 and as of today, the number of CORS are 53. In this study, QC of CORS’s observation data was performed and service status of NGII was investigated. As a result of study, status of satellite survey infrastructure was presented and all CORS’s observation environment was proved satisfactory such as IGS’ CORS’s status.
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