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Journal of Applied Geodesy

Editor-in-Chief: Kahmen, Heribert / Rizos, Chris


CiteScore 2018: 1.61

SCImago Journal Rank (SJR) 2018: 0.532
Source Normalized Impact per Paper (SNIP) 2018: 1.064

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1862-9024
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Volume 7, Issue 4

Issues

VirtuaLites: Aided Single Epoch GPS Integer Ambiguity Resolution for Agricultural Land Vehicle Applications

Anthony Cole
  • University of New South Wales - School of Surveying & Spatial Information Systems Sydney, New South Wales, Australia
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/ Jinling Wang
  • University of New South Wales - School of Surveying & Spatial Information Systems Sydney, New South Wales, Australia
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/ Andrew G. Dempster
  • University of New South Wales - School of Surveying & Spatial Information Systems Sydney, New South Wales, Australia
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/ Chris Rizos
  • University of New South Wales - School of Surveying & Spatial Information Systems Sydney, New South Wales, Australia
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Published Online: 2013-11-27 | DOI: https://doi.org/10.1515/jag-2013-0004

Abstract

The use of GPS technology in the agricultural environment has allowed the development of precision guidance systems that have greatly increased farm efficiencies and reduced environmental impacts. In order to maximize the benefits available from precision agriculture it is necessary to achieve centimeter-level accuracies in the position determination. While real time kinematic (RTK) positioning with integer ambiguities fixed is currently used in order to achieve this level of accuracy, this technique can still suffer outages that result in the need to reacquire the integer ambiguities quickly and reliably. This paper describes a method to improve the success rate for single epoch on-the-fly ambiguity resolution by augmenting the set of observations used to construct the GPS float solution with virtuaLite measurements in order to improve the real-valued ambiguity estimates and to reduce the float solution variances, which leads to a an improvement in the success rate when fixing the ambiguities to integers.

Keywords: Integer Ambiguity; VirtuaLites; INS Integration

About the article

Published Online: 2013-11-27

Published in Print: 2013-11-01


Citation Information: Journal of Applied Geodesy, Volume 7, Issue 4, Pages 247–256, ISSN (Online) 1862-9024, ISSN (Print) 1862-9016, DOI: https://doi.org/10.1515/jag-2013-0004.

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