PPT Slide
Unified Network Adjustment of GPS Data(1997) for Airports Positioning in Japan
The GPS observations at Japanese airports have been carried out since 1996 in order to determine the airports coordinate in WGS-84. We have determined the position for all of Japanese airports based on the GPS Earth Observation Network (GEONET). In order to obtain the coordinate with more higher accuracy, it is necessary to perform the unified network adjustment including IGS, GEONET and airport GPS stations in Japan.