A Study on Precision Analyses of Transverse Layouts by Using VRS-RTK and Conventional RTK－A Case Study of Chu-Shan Township

• Main Authors: Chong-Chih Liang, 梁崇智
• Other Authors: 高書屏
• Format: Others
• Language: zh-TW
• Published: 2006
• Online Access: http://ndltd.ncl.edu.tw/handle/84887202095208572905

碩士 === 國立中興大學 === 土木工程學系所 === 94 === Flourishingly developing technologies of internet and wireless communication have made the Real-Time Kinematic (RTK) satellite positioning as the main stream of international survey and positioning technique. Specifically, the VRS-RTK, the architecture of the Global Positioning System (GPS) network combined with the Virtual Reference Station (VRS) has been the real-time kinematic positioning system that developed countries are actively establishing. Since 2004, the Land Survey Bureau (LSB) MOI, has been integrating the existing base stations around the nation to build up national e-GPS positioning system network. The e-GPS network has offered the improvement of linear deduction caused from the increase of distance between the single reference station and the rover. This has enlarged the operation area than that RTK can reach. Moreover, the area correction parameters (ACP) derived from multi-bases calculation also has improved the RTK positioning precision and liability. The study area is located within the west service net of the national e-GPS real time kinematic network. The 4th and the higher order control points and the traverse points located at the tast 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 less than 2 cm at the N-axis while larger than 10 cm at the E-axis. After transformations either by 4-parameters or 6-parameters, the errors accord with the demands for traverse layout.