DGNSS 기준국 관측환경 분석 Oct 1, 2011· Donghyo Son , Gwandong Park , Jihye Won , Yonggwon Choi Changdon Kee · 0 min read Last updated on Oct 1, 2011 Authors Changdon Kee Professor ← Analysis of GPS signal environment at DGNSS stations Oct 1, 2011 Korean Wide Area Differential Global Positioning System Development Status Preliminary Test Results Oct 1, 2011 →