Global navigation satellite systems for geodetic network surveys

Curran, Liam Patrick (2008) Global navigation satellite systems for geodetic network surveys. [USQ Project]


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[Abstract]: GPS has brought a revolution to the surveying profession and GNSS continues to refine the satellite navigation technology. An abundance of research is available on the effectiveness of GNSS on the RTK style of surveying. However very little research has been conducted on the more precise static techniques.

The aim of this research is to analyse and quantify the precision, accuracy and timesaving gained by using several GNSS constellations over solely using the United States of Americas Department of Defence GPS.

A Fast Static geodetic network survey was designed and carried out under the guidelines set out by the ICSM (Intergovernmental Advisory Committee on Surveying and Mapping) in the SP1 (Standards and Practices for Control Surveys) document as the main part of the testing for this research.

Testing has revealed that unfiltered GNSS data improves the precision of the baselines over unfiltered GPS data and also makes considerable precision gains towards the level of filtered data. GNSS filtered data also showed improvement of the baseline precisions of GPS filtered data. By accepting the same level of precisions achievable with GPS only, testing also indicated that a GNSS user could
reduce observation session lengths and still achieve the same precisions.

With GNSS hardware and software, users have the ability to observe more satellites simultaneously. The ability to track more satellites increases the amount of data recorded in every static session and improve its precision and reliability. Furthermore, the enhanced precision of GNSS over GPS improves the productivity of the user and can reduce the person-hours required for a static mission.

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Item Type: USQ Project
Refereed: No
Item Status: Live Archive
Faculty/School / Institute/Centre: Historic - Faculty of Engineering and Surveying - Department of Surveying and Land Information (Up to 30 Jun 2013)
Date Deposited: 03 Aug 2009 23:44
Last Modified: 02 Jul 2013 23:21
Uncontrolled Keywords: positioning technology; global navigation satellite system; GNSS
Fields of Research (2008): 09 Engineering > 0909 Geomatic Engineering > 090906 Surveying (incl. Hydrographic Surveying)
Fields of Research (2020): 40 ENGINEERING > 4013 Geomatic engineering > 401306 Surveying (incl. hydrographic surveying)

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