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http://dx.doi.org/10.7840/kics.2015.40.10.2102

A Positioning Algorithm Using Virtual Reference for Accuracy Improvement in Relay-Based Navigation System  

Lee, Kyuman (Department of Computer Engineering, Ajou University)
Lim, Jaesung (Department of Computer Engineering, Ajou University)
Publication Information
The Journal of Korean Institute of Communications and Information Sciences / v.40, no.10, 2015 , pp. 2102-2112 More about this Journal
Abstract
In this paper, we propose a new positioning scheme for accuracy improvement of Relay-based Navigation System. The conventional relay-based system occurs larger vertical error than horizontal one due to structural characteristics that positioning references are located toward same direction and a location of user is estimated by triangulation technique. In the proposed positioning scheme, the user position is reestimated using an additional virtual reference which is generated based on position information of reference stations in navigation signals and estimated initial user position. The nearest reference station from the estimated user position is selected as a virtual reference to minimize the effect of geometrical factor. The vertical error decreases by using reference points on multi planes, therefore, accurate positioning is possible than the conventional scheme. We demonstrated that the accuracy of a user is improved through simulation results.
Keywords
Virtual Reference; Relay-based; Positioning scheme; Pseudolite; Alternative GNSS;
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Times Cited By KSCI : 3  (Citation Analysis)
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