A Candidate for the Galileo L1 OS Optimized Signal

Guenter W. Hein, Jose-Angel Avila-Rodriguez, Lionel Ries, Laurent Lestarquit, Jean-Luc Issler, Jeremie Godet and Tony Pratt

Abstract:	On June 26th, 2004, the United States of America and the European Union signed the "Agreement on the promotion, provision and use of GALILEO and GPS satellite-based navigation systems and related applications". Among many other topics it was decided to adopt a common baseline signal to be transmitted by both Galileo and the future GPS (L1C) on L1. Although the agreement fixed BOC(1,1) as the baseline for both Galileo L1 Open Service and GPS future L1C signals, it left the door open at the same time for a possible optimization of that signal considering the overall framework conditions of the agreement. This paper is discussing possible candidates for the L1 OS optimized signal and analyses their performance with respect to the baseline BOC(1,1) signal. It is shown that a sophisticated signal may be created which allows users on the one side still to use the baseline BOC(1,1) whereas the high-precision user may track the new optimized signal achieving an improvement of more than 40 % already with a limited bandwidth of 12 MHz.
Published in:	Proceedings of the 18th International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GNSS 2005) September 13 - 16, 2005 Long Beach Convention Center Long Beach, CA
Pages:	833 - 845
Cite this article:	Hein, Guenter W., Avila-Rodriguez, Jose-Angel, Ries, Lionel, Lestarquit, Laurent, Issler, Jean-Luc, Godet, Jeremie, Pratt, Tony, "A Candidate for the Galileo L1 OS Optimized Signal," Proceedings of the 18th International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GNSS 2005), Long Beach, CA, September 2005, pp. 833-845.
Full Paper:	ION Members/Non-Members: 1 Download Credit Sign In