| Summary: | 碩士 === 逢甲大學 === 環境資訊科技研究所 === 94 === Global Positioning System already quite was widespread in the survey research aspect application, how promoted the GPS pointing accuracy always was experts'' emphatically place. For achieved this goal, this research application supposed to the FCU''s short baseline, discussed the antenna''s phase center of the GPS receiver. This research technique for entire sets at the GPS antenna and the double frequency receiver in each adjustment baseline point position. After observed, carries on the baseline solution by the Bernese software to calculate, separately is considered as has not joined the antenna phase center with joins the antenna phase center each time interval each adjustment baseline point. Affiliation these research, is analyzing the GPS observed data and the baseline solution calculated relevance of the precision, Obtains influence of the antenna phase center horizontal and vertical offset, then promotes the GPS precision in the survey. This result of study is proved, there is error value of the biggest 8mm if does not calibrate antenna''s phase center for Leica SR399 and Trimble 5700.
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