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ISSN 2083-6473
ISSN 2083-6481 (electronic version)
 

 

 

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Tomasz Neumann
 

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TransNav, Faculty of Navigation
Gdynia Maritime University
3, John Paul II Avenue
81-345 Gdynia, POLAND
www http://www.transnav.eu
e-mail transnav@am.gdynia.pl
Galileo AltBOC E5 Signal Characteristics for Optimal Tracking Algorithms
1 Czech Technical University in Prague, Prague, Czech Republic
ABSTRACT: The paper deals with an optimal processing of a Galileo E5 signal. A proposed correlator structure was developed on a base of a deep study of an E5 signal cross correlation function. Due to the non linearity of the E5 AltBOC modulation the proposed correlator calculates the cross correlation function between a received signal and a signal replica for all possible hypotheses of the navigation message bits. A correct peak tracking verification is realized by implementation of a single side band correlator, which also serves for course signal acquisition and secondary ranging code synchronization. The signal processing was verified on the Galileo Giove A and Giove B satellites with very positive preliminary results.
REFERENCES
ESA 2008. Galileo Open Service, Signal In Space Interface Control Document, OS SIS ICD, Draft 1. European Space Agency / European GNSS Supervisory Authority.
Kaplan, D. 1996. Understanding GPS Principles and Applica-tions. London: Artech House Inc.
Kovář, P. & Seidl, L. & Špaček, J. & Vejražka, F. 2006. Software GNSS Receiver for Signal Experiments. In IAIN/GNSS 2006. 12-th IAIN World Congress. Proceedings, vol. 2. Jeju: Korean Institute of Navigation and Port Research: 391-394.
Citation note:
Vejražka F., Kovar P., Kacmarík P.: Galileo AltBOC E5 Signal Characteristics for Optimal Tracking Algorithms. TransNav, the International Journal on Marine Navigation and Safety of Sea Transportation, Vol. 4, No. 1, pp. 37-40, 2010

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