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Potential Benefits of GPS/GLONASS/GALILEO Integration in an Urban Canyon – Hong Kong

Published online by Cambridge University Press:  13 September 2010

Shengyue Ji ,
Wu Chen ,
Xiaoli Ding ,
Yongqi Chen ,
Chunmei Zhao  and
Congwei Hu
Shengyue Ji
Affiliation:
(Hong Kong Polytechnic University)
Wu Chen
Affiliation:
(Hong Kong Polytechnic University)
Xiaoli Ding
Affiliation:
(Hong Kong Polytechnic University)
Yongqi Chen
Affiliation:
(Hong Kong Polytechnic University)
Chunmei Zhao
Affiliation:
(Chinese Academy of Surveying & Mapping)
Congwei Hu*
Affiliation:
(Tongji University)
*
(Email: ls941086@polyu.edu.hk)
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Abstract

With the existing GPS, the replenishment of GLONASS and the launching of Galileo there will be three satellite navigation systems in the future, with a total of more than 80 satellites. So it can be expected that the performance of the global navigation satellite system (GNSS) will be greatly improved, especially in urban environments. This paper studies the potential benefits of GPS/GLONASS/Galileo integration in an urban canyon – Hong Kong. The navigation performances of four choices (GPS alone, GPS+GLONASS, GPS+Galileo and GPS+GLONASS+Galileo) are evaluated in terms of availability, coverage, and continuity based on simulation. The results show that there are significant improvements in availability, coverage and continuity, by using GPS+GLONASS+Galileo compared with the other choices. But the performance is still not good enough for most navigation applications in urban environments.

Keywords

GPSGLONASSGALILEOUrban canyons
Type
Research Article
Information
The Journal of Navigation , Volume 63 , Issue 4 , October 2010 , pp. 681 - 693
Copyright
Copyright © The Royal Institute of Navigation 2010

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