| Summary: | 碩士 === 國立政治大學 === 地政研究所 === 96 === For expanding the effective range and decreasing the density of base stations, Land Survey Bureau, Ministry of the Interior (LSB) have set up a national e-GPS base stations network in 2006. In order to obtain high precision position result and provide multi-goals positioning service with plus value application, the system will be involved regional position error interpolating mode and Virtual Base Station（VBS）technique.
The research area is located within the north service net of the national e-GPS base stations network, feasible discussion of using to Supplementary control survey and direct to transact the land resurvey with the VBS-RTK technique. Firstly, The 4th and the higher order control points and the traverse points located at the research area were examined with the VRS-RTK. Compared with the original data, the results have shown that the average of the absolute value of errors is 1.9 cm at the N-axis, 2.0 cm at the E-axis. After transformations either by affine-6-parameters, the result shows that all of the errors are satisfy the stipulation of rules.Secondly, using the VBS-RTK technique to undertake land survey correction, the all errors are satisfy the stipulation of rules.( less than 6 cm )
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