An evaluation of the performance of two different global satellite navigation systems, Trimble’s CenterPoint RTX and a conventional network RTK system

Boylan, Richard (2016) An evaluation of the performance of two different global satellite navigation systems, Trimble’s CenterPoint RTX and a conventional network RTK system. [USQ Project]

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Abstract

In the middle of 2011 Trimble introduced the CenterPoint Real time extended (RTX) real-time positioning service providing centimetre accurate positions for real-time applications. This emerging technology means that a GNSS system can be used without reliance on an internet connection, and independent from a conventional base/rover set up, thus overcoming the limitations of the existing systems.

A comprehensive literature search reveals a lack of testing in the Sothern Hemisphere to date. This new solution needs to be tested for accuracies and precisions that can be achieved by comparing against a conventional network RTK (NRTK) system and determine if there is any significant decrease in accuracy or precision over time.

The tests were conducted on a high accuracy survey permanent mark which has known coordinate values. The testing included the data collection from both systems (RTX and NRTK) on the survey mark individually. Coordinates from each system were compared against the known coordinates to assess accuracy and precision.

RTX failed to meet the meet the accuracies or precisions as stated in the manufacturers datasheets but the system’s precisions did increase over time.

The benefit of this dissertation is to produce a reliable and current set of results in the Sothern Hemisphere and to assist the survey profession in understanding this new emerging technology.


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Item Type: USQ Project
Item Status: Live Archive
Additional Information: Bachelor of Spatial Science (Honours) project
Faculty / Department / School: Current - Faculty of Health, Engineering and Sciences - School of Civil Engineering and Surveying
Supervisors: Gibbings, Peter
Date Deposited: 19 Jul 2017 01:40
Last Modified: 19 Jul 2017 04:17
Uncontrolled Keywords: global satellite; navigation systems
Fields of Research : 09 Engineering > 0909 Geomatic Engineering > 090903 Geospatial Information Systems
URI: http://eprints.usq.edu.au/id/eprint/31378

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