—This paper analyzes the positioning performance of Global Navigation Satellite Systems (GNSSs) in an urban canyon environment. The recently developed telematics technology requires highly accurate and robust positioning performance in urban areas. However, GPS positioning alone fails to provide adequate performance in this environment. In this paper, we developed a simulator and simulated the positioning process in an urban environment in order to analyze the performance of GPS and GLONASS combined positioning. In the results, the positioning possibility was improved but the accuracy was not enhanced when GPS/GLONASS combined positioning was performed. The accuracy was not improved because of geometrical instability. Therefore, for accurate and robust positioning in an urban canyon environment, GNSS should be integrated with other type of sensors such as an Inertial Navigation System or a Vision System.
—GNSS, GPS, GLONASS, positioning.
The authors are with the Division of IoT and Robotics Convergence Research, DGIST, Daegu, South Korea (e-mail: email@example.com, firstname.lastname@example.org).
Cite:Nam-Hyeok Kim and Chi-Ho Park, "Simulation Analysis of GPS/GLONASS Absolute Positioning Performance in an Urban Canyon Environment," International Journal of Computer Theory and Engineering vol. 9, no. 1, pp. 38-42, 2017.