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http://dx.doi.org/10.5394/KINPR.2012.36.6.429

Analysis of integrated GPS and GLONASS double difference relative positioning accuracy in the simulation environment with lots of signal blockage  

Lee, Ho-Seok (Graduate school of Inha University, CyberLogitec Co., Ltd.)
Park, Kwan-Dong (Department of Geoinformatic Engineering, Inha University)
Kim, Du-Sik (Graduate School of Inha University)
Sohn, Dong-Hyo (Graduate School of Inha University)
Publication Information
Journal of Navigation and Port Research / v.36, no.6, 2012 , pp. 429-435 More about this Journal
Abstract
Although GNSS hardware and software technologies have been steadily advanced, it is still difficult to obtain reliable positioning results in the area with lots of signal blockage. In this study, algorithms for integrated GPS and GLONASS double difference relative positioning were developed and its performance was validated via simulations of signal blockages. We assumed that signal blockages are caused by high-rise buildings to the east, west, and south directions. And then, GPS-only and integrated GPS/GLONASS positioning accuracy was analysed in terms of 2-dimensional positioning accuracies. Compared with GPS-only positioning, the positioning accuracy of integrated GPS/GLONASS improved by 0.3-13.5 meters.
Keywords
GPS; GLONASS; relative positioning; signal blockage; simulation;
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