Simulation Analysis of GPS/Galileo/Compass Radio Frequency Compatibility

W. Liu, C. Zhai, Y. Zhang, X. Zhan

Abstract:	The increasing number of new global navigation satellite system (GNSS) signals result in the need to assess radio frequency compatibility carefully. The GNSS radio frequency compatibility problem has become a matter of great concern for the system providers and user communities. This paper mainly deals with the signal interference computation and simulation among the GPS/Galileo/Compass and displays some important radio frequency compatibility analysis results. Firstly, a more complete methodology for the radio frequency compatibility assessment which takes the influence of the codes onto the spectra and the effect of Doppler frequency shift into account is described. Secondly, Real Simulations accounting for the interference effects on L1 band where GPS, Galileo and Compass are sharing the same band are carried out at every time and place on the earth. All the results show that Compass introduces intersystem interference to GPS and Galileo, but the interference effects are lower than GPS or Galileo interfered to Compass signals. Compass can provide a sound basis for compatibility with GPS and Galileo. Advantages of multi-mode GNSS receivers will benefit to the user community.
Published in:	Proceedings of the 22nd International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GNSS 2009) September 22 - 25, 2009 Savannah International Convention Center Savannah, GA
Pages:	1552 - 1560
Cite this article:	Liu, W., Zhai, C., Zhang, Y., Zhan, X., "Simulation Analysis of GPS/Galileo/Compass Radio Frequency Compatibility," Proceedings of the 22nd International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GNSS 2009), Savannah, GA, September 2009, pp. 1552-1560.
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