Effect of time interval variations on network RTK in a high multipath environment

McDonnell, James (2016) Effect of time interval variations on network RTK in a high multipath environment. [USQ Project]

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Abstract

The research aim for this project was to investigate the effect of time interval variations on Network RTK in a high multipath environment. Meaning does the time in between observing each point at the end of a line using Network RTK GNSS effect the accuracy of the calculated distance between the two points. And how is the relationship of time and accuracy affected when introduced to a high multipath environment. Finally, how can these determined accuracies for horizontal distance measurement be applied to survey regulation accuracy for cadastral surveys of 10mm + 50ppm stated in the CSR.

The analysis looked at two different datasets. First a dataset captured over a 12-hour period free from the effects of multipath. And secondly a dataset captured over a 12- hour period with the effect of multipath present. The analysis calculations used the Zero Distance Method and utilized two different time intervals firstly a 30-minute window and second a 5-minute window.

The key findings from the research found that using the shorter time lapse window of 5-minutes produced a calculated distance with high accuracy over the 30-minute time lapse window. The was found for both the multipath free and multipath present datasets. These results successfully achieved the research aim and aligned with previous research.


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Item Type: USQ Project
Item Status: Live Archive
Additional Information: Bachelor of Spatial Science (Honours) Major Surveying project
Faculty / Department / School: Current - Faculty of Health, Engineering and Sciences - School of Civil Engineering and Surveying
Supervisors: Gibbings, Peter
Date Deposited: 21 Jul 2017 01:32
Last Modified: 21 Jul 2017 01:32
Uncontrolled Keywords: time interval variations; network RTK; multipath environment
Fields of Research : 09 Engineering > 0909 Geomatic Engineering > 090906 Surveying (incl. Hydrographic Surveying)
URI: http://eprints.usq.edu.au/id/eprint/31441

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