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http://dx.doi.org/10.7319/kogsis.2015.23.4.049

Analysis of Integrated GPS/GLONASS/BDS Positioning Accuracy using Low Cost Receiver  

Tae, Hyun U (Dept. of Geoinformatic Engineering, Inha University)
Park, Kwan Dong (Dept. of Geoinformatic Engineering, Inha University)
Kim, Mi So (Dept. of Geoinformatic Engineering, Inha University)
Publication Information
Journal of Korean Society for Geospatial Information Science / v.23, no.4, 2015 , pp. 49-55 More about this Journal
Abstract
This paper explains major considerations for integrated GPS/GLONASS/BDS positioning, and then analyzes integrated GNSS positioning accuracies based on low-cost receivers in open-sky and poor reception environments. In an open-sky environment, horizontal RMSE of the integrated system positioning is about 1.2m. It shows improved result compared with single system positioning, the improvement ratio was 17-55%. In poor reception environments, we sometimes could not do positioning because the number of visible satellites gets below four. In an integrated positioning mode, the number of visible satellites was always higher than four, allowing us to find positions all the time. The horizontal RMSE of the integrated system positioning in poor reception environments is about 6.4m. Compared with single system positioning;the integrated system positioning shows better performance and the improvement ratio was 8-47% for the horizontal directions.
Keywords
GPS; GLONASS; BeiDou; Code Pseudo-range; Satellite Visibility;
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