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Accuracy Evaluation Between GPS Virtual Reference Station (VRS) and GPS Real Time Kinematic (RTK) Techniques
| Content Provider | Semantic Scholar |
|---|---|
| Author | Mohamed, Khaled Youssef Mageed, Abdel |
| Copyright Year | 2013 |
| Abstract | There are some limitations when using the GPS RTK technique such as: the limited distance for the radio transmitter; the need for base receiver; and the dependence on only one-base point to calculate the corrections. On the other hand, Virtual Reference Station VRS is an imaginary, unoccupied reference station which is only a few meters from the RTK user. The principle is to interpolate the data of several Continuous Operating Reference Station CORS in order to obtain the correction data for the rovers, which reduces the systematic influences of the RTK measurement decisively; and allowing distance between the reference station and the rover to be increased; in addition to the reliability of the system is heightened. This paper aims to comparing the X, Y and Z coordinates resulted from VRS network with the resulted coordinates for the same points resulted from RTK technique. The results supported with statistical analysis showed that horizontal positional discrepancy P between the two techniques has a mean value of 52 mm with 18 mm standard 2d deviation, while the spatial positional discrepancy P has a mean value of 67 mm with standard deviation 3d 23 mm. These findings are considered to be insignificant in the daily work of cadastral and topographic survey work, but should be taken into account for the precise surveying such as monitoring of structure deformation when combining the two techniques in the measurements. |
| File Format | PDF HTM / HTML |
| Alternate Webpage(s) | http://www.idosi.org/wasj/wasj24(9)13/6.pdf |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
