Applicabilityof GPSGrid Geometrical Figure Following the Star-Shaped Links in Cadastral GridConstruction

The use of GPS grid geometrical figure following star-shaped links instead ofusing GPS grid geometrical figure following normal link will be a breakthrough to increase measurement speed, increase maximum performance in instrumentation use. However, this method has not been implemented in cadastral grid construction. In order to confirm that it is possible to use the GPS grid geometrical figure following star-shaped links in the construction of the cadastral grid, the research team has evaluated the coordinate differences of the points of the same name in 4 experimental schemes (PA), in which, schemes PA1, PA2 were done according to the normal link, schemes PA3, PA4 were arranged according to the star-shaped links. The results showed that: The error of point position in the 4 schemes has changed (mpmin = 0.004 ÷ 0.006m; mpmax = 0.011 ÷ 0.017m). The largest point deviation in PA2, PA3 and PA4 compared with PA1: according to the x-axis was 0.019m; on the y-axis it was 0.014m and the actual deviation was 0.019m. The experimental results showed that the GPS grid geometrical figure’s criteria have completely met the quality standards for the cadastral grid according to the current regulations, so the GPS grid geometrical figure following to the star-shaped links cam be applied in the construction of the cadastral control framework.