C-Band User Terminal Tracking Loop Stability Analysis for European GNSS Evolution Programme

Jong-Hoon Won, Bernd Eissfeller, Andreas Schmitz-Peiffer, Enrico Colzi

Abstract:	This paper presents a tracking loop stability analyses on C-Band user terminals of the next generation European satellite-based navigation system and a comparison with L-band user terminals. First, the impact of the C-band on signal tracking loops of user terminals was analyzed. All signal tracking loops of a C-band user terminal were designed in order to achieve a lower noise jitter than a certain amount of pre-defined threshold. In addition, the impact of the use of high performance oscillators (e.g., Rubidium) on PLL and the feasibility study on the use of low performance oscillator for FLL-only carrier tracking solution were included to show the expected user terminal performance in case of low cost commercial purpose receivers. Second, based on the results of signal tracking loop stability analysis we obtained the minimum required signal power budget at receivers which can be efficiently used when calculating the required transmit signal power level at satellites with considering link budget. The range equivalent thermal noise error was used to compare the expected C-band user terminal performance with the system requirements of the Service Definition.
Published in:	Proceedings of the 21st International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GNSS 2008) September 16 - 19, 2008 Savannah International Convention Center Savannah, GA
Pages:	1706 - 1718
Cite this article:	Won, Jong-Hoon, Eissfeller, Bernd, Schmitz-Peiffer, Andreas, Colzi, Enrico, "C-Band User Terminal Tracking Loop Stability Analysis for European GNSS Evolution Programme," Proceedings of the 21st International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GNSS 2008), Savannah, GA, September 2008, pp. 1706-1718.
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