Scholarly record
ACCURACY MEASUREMENT DETERMINATION ON DIFFERENT DISTANCES USING GEODETIC NETWORK MEASUREMENT AND ADJUSTMENT
Abstract
The paper focuses on the experimental determination of the accuracy of automatic angular targeting of total stations. The measurements were carried out with Trimble S6 HP and Trimble S8 HP robotic total stations owned by the Department of Special Geodesy at the Faculty of Civil Engineering, CTU in Prague. Accuracy of targeting was determined with use of both laboratory and outdoor experimental geodetic networks. The laboratory micronetworks were two. One was made up of 10 points with a length of sight from 1.8 m to 3.1 m, and the other consisted of 6 points with sight lengths from 2.3 m to 5.3 m. The outdoor network was made up of 6 points with a length of 30 m. The geodetic measurements were carried out from each point to all the other neighboring points of the network, as a target was used the Leica mini prism GMP101. Accuracy of automatic targeting was then determined by the least squares adjustment method with use of the GNU Gama software. The resulting aposteriori standard deviations of horizontal directions, zenith angles and slope distances characterize the accuracy of automatic targeting and measurement, at very short lengths of sights were achieved higher (worse) values of standard deviations than the manufacturer stated. At larger distances in the outdoor network, the standard deviations responded the manufacturer's parameters. The results verify the functionality and accuracy of the automatic targeting, while pointing to the need to consider worse accuracy for short lengths. It is also an interesting and reliable way of verifying (or directly determining) the achievable accuracy in conditions corresponding to the situation of use and therefore the reliability of the derived standard deviations is very high.
Publication Impact Profile
- Captures
- Mendeley - Readers: 3
Publication details
References0
Structured references will appear here after the reference import pass. The count is preserved now so the scholarly record is not incomplete.
View or Download full articleAccess options
SWS access login
Login as SWS Scientific CommitteeLogin as SWS Scientific PartnerLogin as SWS AuthorAuthors and approved SWS contributors will read and export their own linked papers after identity matching by SWS profile, email and SGEM GlobalID.
For librarian assistance: [email protected]
Purchase Instant Access
- Article can be downloaded after successful payment.
- Article may be used according to SWS library access terms.
- Article cannot be redistributed.