Assessing Quality of CORnet-NSW Infrastructure for Use in Regional New South Wales, Australia

McMahon, S. and Paudyal, D. R. ORCID: https://orcid.org/0000-0003-1010-2118 (2022) Assessing Quality of CORnet-NSW Infrastructure for Use in Regional New South Wales, Australia. ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences, V-4-2022. pp. 153-161. ISSN 2194-9042

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Abstract

CORSnet-NSW is a network of Global Navigation Satellite System (GNSS) Continuously Operating Reference Stations (CORS) covering the state of NSW and providing centimetre-level real-time positioning. This research paper aims to determine the level of accuracy and precision of CORSnet-NSW in regional parts of the network and compare them to that of traditional RTK under identical conditions. It investigates what effects satellite geometry and proximity to a CORS station have on NRTK measurements. It also verifies the CORSnet-NSW claim of network wide 2cm accuracy. The claim was found to be true at the 68% Confidence Interval. Changes in satellite geometry were not found to affect the results for the most part. It was also found that CORSnet-NSW
precision was affected by the proximity of the rover to the base/calibration points more than its proximity to a CORSnet-NSW station. However, even though the CORSnet-NSW results were better than expected, traditional RTK remains the most precise and consistent method. This research paper provides GNSS users in regional NSW with the evidence they need to make informed decisions regarding which type of RTK method is fit for their purposes.


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Item Type: Article (Commonwealth Reporting Category C)
Refereed: Yes
Item Status: Live Archive
Faculty/School / Institute/Centre: Current – Faculty of Health, Engineering and Sciences - School of Surveying and Built Environment (1 Jan 2022 -)
Faculty/School / Institute/Centre: Current – Faculty of Health, Engineering and Sciences - School of Surveying and Built Environment (1 Jan 2022 -)
Date Deposited: 05 Jun 2022 22:31
Last Modified: 27 Sep 2022 03:44
Uncontrolled Keywords: CORSnet-NSW, Vertical Accuracy, Precision, RTK GNSS, CORS Comparison, Network RTK (NRTK)
Fields of Research (2020): 40 ENGINEERING > 4013 Geomatic engineering > 401305 Satellite-based positioning
Socio-Economic Objectives (2020): 28 EXPANDING KNOWLEDGE > 2801 Expanding knowledge > 280110 Expanding knowledge in engineering
Identification Number or DOI: https://doi.org/10.5194/isprs-annals-V-4-2022-153-2022
URI: http://eprints.usq.edu.au/id/eprint/47845

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