GPS를 이용한 무인항공기의 비행실험 Nov 1, 2001· Sanghyo Lee Youngsu Cho Sungmin Park Jeonghan Kim Changdon Kee , Igi Ahn · 0 min read Last updated on Nov 1, 2001 Authors Sanghyo Lee M.S Authors Youngsu Cho M.S Authors Sungmin Park Ph.D Authors Jeonghan Kim Ph.D Authors Changdon Kee Professor ← Concept and Experimental Results of Pseudolite-based Indoor Navigation System Nov 1, 2001 Performance Evaluation For Ground Based Augmentation System (GBAS) Nov 1, 2001 →