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The document is a report from Vrince Vimal, an assistant professor at BDU in Ethiopia, dated September 28, 2013. It discusses Global Positioning System (GPS) measurement techniques including point positioning with C/A code measurements, relative positioning using code-based and phase-based methods. It also mentions GPS applications and provides accuracy levels ranging from 20 meters to sub-meter depending on the positioning method used. The report contains information across 47 numbered pages on GPS measurement techniques and applications.