000			01516cab a2200193 4500
001			L129247
008			050404n2005 000 0 eng u
035			_a(Sirsi) u129247
041			_aeng
100			_aStronk, Matthias
245			_aSAPOS: a satellite positioning service of the German State Survey
260			_c2005
490			_aGeo Informatics _v March 2005, 40-43(4)
520			_aReports on the development of SAPOS, the satellite positioning service created through a project of the Working Committee of the Surveying Authorities of the States of the Federal Republic of Germany. Consisting of a network of more than 250 permanently observing reference stations nationwide ensuring spatial reference data based on the Europe-wide standardised reference system ETRS89. Covers the basic principles of differential GPS in real-time, real-time networking of reference stations and postprocessing. Discusses the SAPOS data formats and communication media and looks at the main SAPOS products: SAPOS HEPS (High Precision Real-time Positioning Service); SAPOS EPS (Real-Time Positioning Service); and SAPOS GPPS/GHPS (Geodetic Precision/High Precision Positioning Service). A SAPOS central bureau was established in Hannover in 2003. Concludes that SAPOS has opened up a new horizon for GPS measurements in Germany.
590			_aIKA150405
690			_aENVIRONMENTAL AND LAND CONSULTANCY-GEOMATICS-GEOGRAPHIC INFORMATION SCIENCE-GEOGRAPHIC INFORMATION SYSTEMS
700			_aWegener, Volker
942			_n0
999			_c75016 _d75016