Development of Korean WADGPS

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Presentation transcript:

Development of Korean WADGPS Changdon Kee Seoul National University 7/24/2002

International Development of WADGPS WAAS (USA) EGNOS (Europe) MSAS (Japan) SNAS (China) GAGAN (India) GRAS (Australia)

Future WADGPS Coverage Regions

GPS Reference Stations in Korea Total # of Station = 65 Astronomical Observatory Institute of Geogragphy Ministry of Home Affair Ministry of Marine Affair Institute of Geology

Korean NDGPS Reference Stations # of Station = 8 + 3

Korean WADGPS (Option 1) 정지궤도 위성 GPS 위성 d $ R j b j 전리층 I d $ , R I j b 광역기준국 사용자 중앙처리국 ` 광역기준국 지구국 광역기준국 광역기준국

Korean WADGPS (Option 2) b j 전리층 I 사용자 VHF 광역기준구 Wide Area Master Station 보정치 가상기준국 광역기준국 가상기준국 Wide Area Ref. Station Virtual Ref. Station 가상기준국 광역기준국

Korean WADGPS Driving Organization: Ministry of Marine Affairs DGPS -> NDGPS -> WADGPS Provide better Integrity, Continuity, Availability Use the same Ref. Stations in NDGPS Options to broadcast correction 1. GEO (WADGPS) 2. Loran-C (WADGPS) 3. Radio Beacon (DGPS, Virtual Ref Station) Implementation: 2006 - 2008