Flight Test of Helicopter Landing System Using Real-Time DGPSSep 1, 1999·Changdon KeeSungmin ParkJeonghan KimDeokho HwangJaegyu Jang,Hyeongtaek Park,Hongman Park,Changhyo Lee· 0 min readLast updated on Sep 1, 1999 AuthorsChangdon KeeProfessor EmeritusAuthorsSungmin ParkPh.DAuthorsJeonghan KimPh.DAuthorsDeokho HwangM.SAuthorsJaegyu JangPh.D← Development of Real-time SNUDGPS via Ionospheric and Tropospheric Corrections Sep 1, 1999GPS를 이용한 항공기 이착륙시스템 Aug 1, 1999 →