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To keep the computational burden associated with the analysis of such data economically feasible, one approach is to first determine precise GPS satellite positions and clock corrections from a globally distributed network of GPS receivers. Then, data from the local network are analyzed by estimating receiver\u2010specific parameters with receiver\u2010specific data; satellite parameters are held fixed at their values determined in the global solution. This \u201cprecise point positioning\u201d allows analysis of data from hundreds to thousands of sites every day with 40\u2010Mflop computers, with results comparable in quality to the simultaneous analysis of all data. The reference frames for the global and network solutions can be free of distortion imposed by erroneous fiducial constraints on any sites.<\/jats:p>","DOI":"10.1029\/96jb03860","type":"journal-article","created":{"date-parts":[[2004,2,3]],"date-time":"2004-02-03T23:26:39Z","timestamp":1075850799000},"page":"5005-5017","source":"Crossref","is-referenced-by-count":3068,"title":["Precise point positioning for the efficient and robust analysis of GPS data from large networks"],"prefix":"10.1029","volume":"102","author":[{"given":"J. F.","family":"Zumberge","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"M. B.","family":"Heflin","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"D. C.","family":"Jefferson","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"M. 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