| Summary: | 碩士 === 逢甲大學 === 土地管理所 === 92 === The advantage of GPS RTK positioning is high accuracy in positioning and quickly surveying without post-processing. But it has disadvantage when the distance of reference station and rover station is increased, the systematic errors of ionosphere, troposphere, and orbit effect the accuracy of positioning. In another way, the RTK costs a lot of in surveying.
Comparing with RTK positioning, network RTK has high accuracy positioning in medium or long distance with modeling the systematic errors. In addition, it has advantage of low cost in instruments and members.
In order to test the positioning performance of network RTK, the epoch by epoch network RTK is used, and three different networks in baseline are also selected for testing. The result compassion between single frequency and dual frequency processing modes are made.
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