Status of Galileo Frequency and Signal Design

Guenter W. Hein, Jeremie Godet, Jean-Luc Issler, Jean-Christophe Martin, Philippe Erhard, Rafael Lucas-Rodriguez and Tony Pratt

Abstract:	The paper presents the status of the Galileo frequency and signal structure, status Sept. 2002. The Galileo carrier frequency, modulation scheme and data rate of all 10 navigation signals are described as well as parameters of the search and rescue service. The navigation signals will support services addressed to three different types of users. The signal performance in terms of the pseudorange code error due to thermal noise and multipath is discussed as well as interference from other radionavigation services. The interoperability and compatibility of Galileo and GPS is realized by having two common center frequencies in E5a/L5 and L1 as well as adequate geodetic coordinate and time reference frames. New results on reciprocal GPS/Galileo signal degradation due to signal overlay are presented showing a minimum impact and confirming the high level of interoperability of the two systems.
Published in:	Proceedings of the 15th International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GPS 2002) September 24 - 27, 2002 Oregon Convention Center Portland, OR
Pages:	266 - 277
Cite this article:	Hein, Guenter W., Godet, Jeremie, Issler, Jean-Luc, Martin, Jean-Christophe, Erhard, Philippe, Lucas-Rodriguez, Rafael, Pratt, Tony, "Status of Galileo Frequency and Signal Design," Proceedings of the 15th International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GPS 2002), Portland, OR, September 2002, pp. 266-277.
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