Assessing Radio Frequency Compatibility Between Galileo and Compass (Review Paper))

  • Wei Liu Shanghai Jiao Tong University, Shanghai
  • Yuan Hu Shanghai Ocean University, Shanghai
  • Xingqun Zhan Shanghai Jiao Tong University, Shanghai
  • Chuanrun Zhai Shanghai Jiao Tong University, Shanghai
DOI: https://doi.org/10.14429/dsj.61.285
Keywords: signal compatibility, interference assessment, navigation systems, spectral separation coefficient

Abstract

The radio frequency compatibility between Galileo and Compass has become a matter of great concern for the system providers and user community. This paper mainly deals with the intersystem interference between Galileo and Compass systems and displays some important analysis results. First, a comprehensive methodology for the radio frequency compatibility assessment is described, considering the geometry-dependent and time-varying terms such as space constellation, signal modulation, emission power level, space loss, satellite antenna gain, and user receiver characteristic. Second, real simulations were carried out to assess the interference effects where Galileo and Compass signals were sharing the same band. Simulation results show that Compass introduces intersystem interference to Galileo, but the interference effects are lower than those of Compass interfered to Galileo signals. In addition, the radio frequency compatibility in Asia-Pacific region was analysed. It was found that the maximum interference suffered by Galileo from Compass was below 0.25dB under existing rules of coordination at International Telecommunication Union (ITU). In other words, Compass can provide a sound basis for compatibility with Galileo.

Defence Science Journal, 2011, 61(6), pp.545-553, DOI:http://dx.doi.org/10.14429/dsj.61.285

Author Biographies

Wei Liu, Shanghai Jiao Tong University, Shanghai
Dr Wei Liu received PhD from Shanghai Jiao Tong University, Shanghai, China, in 2011. He is currently working at the Shanghai Maritime University. His research interests are: of signal processing, GNSS software receiver design, and GNSS related interference studies.
Yuan Hu, Shanghai Ocean University, Shanghai
Dr Yuan Hu received PhD from Shanghai Jiao Tong University, Shanghai, China, in 2011. She is currently working at the Shanghai Ocean University. Her research interests are: signal processing, computer science, and GNSS related application studies.
Xingqun Zhan, Shanghai Jiao Tong University, Shanghai
Prof Xingqun Zhan received his PhD from Harbin Institute of Technology, Harbin, China. He is Professor of Navigation Guidance and Control at Shanghai Jiao Tong University, China. His main research areas include: GNSS technology and applications, and integrated navigation system.
Chuanrun Zhai, Shanghai Jiao Tong University, Shanghai
Prof Chuanrun Zhai received his PhD from Harbin Institute of Technology, Harbin, China. He is Associate Professor of Navigation Guidance and Control at Shanghai Jiao Tong University, China. His main research areas include: Satellite navigation and pseudolites, and GNSS receiver design and performance.
Published
2011-10-28
How to Cite
Liu, W., Hu, Y., Zhan, X., & Zhai, C. (2011). Assessing Radio Frequency Compatibility Between Galileo and Compass (Review Paper)). Defence Science Journal, 61(6), 545-553. https://doi.org/10.14429/dsj.61.285
Issue
Vol 61 No 6
Section
Review Papers
Copyright (c) 2016 Defence Science Journal

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