Performance analysis of GLONASS integration with GPS vectorised receiver in urban canyon positioning

Abstract

Urban-canyon positioning encounters many problems such as successive attenuation and even blocking of the signals. Vectorised receiver is a solution in which stronger signals aid weak and blocked ones to be tracked and reacquired. On the other hand, limited accessibility to the sky makes trouble in the performance of navigation filter. As the result, integration of satellite-based positioning systems is suggested to increase the number of visible satellites in the receiver view. In this paper, the architecture of an implemented GPS-combined-GLONASS Vectorised Receiver (GGVR) in a software platform is explored and its advantages rather than a GPS-only Vectorised Receiver (GVR) are demonstrated analytically. Experimental tests in different static and dynamic scenarios are also included. The results show that in the urban-canyon trajectory where the GVR has only 80% availability, the GGVR positioning solution is 100% available in the whole movement duration.

Keywords:

• GLONASS
• GPS: Integration
• Vectorised receiver
• Positioning

Acknowledgement

We also thank the late Professor Kai Borre for his comments that greatly improved the manuscript.

Additional information

Funding

This work was supported by the Ministry of Education and Science of the Russian Federation