Title :
Analysis of Galileo E1 OS unbiased BOC/CBOC tracking techniques for mass market applications
Author :
Julien, Olivier ; Macabiau, Christophe ; Bertrand, Emmanuel
Author_Institution :
Lab. de Traitement du Signal et des, Telecommun., Ecole Nat. de l´´Aviation Civile (ENAC), Toulouse, France
Abstract :
BOC modulation is used for Galileo E1 OS signals. The Offset Carrier (OC) modulation is interesting to transmit the Galileo signal because it offers a high degree of spectral separation with signals centered in the used band and a better robustness against noise, multipath and interference. However, BOC modulation introduces several peaks to the autocorrelation function, potentially biasing the pseudorange measurements. Several techniques were proposed in the last ten years to overcome this problem. The aim of this paper is to present an analysis of the suitability of unbiased BOC/CBOC tracking techniques of the Galileo E1 OS signal implemented in mass market receivers by reviewing their models and by testing them.
Keywords :
modulation; satellite navigation; BOC modulation; Galileo E1 OS; autocorrelation function; mass market applications; offset carrier modulation; pseudorange measurement; unbiased BOC/CBOC tracking techniques; Correlation; Correlators; Delay; Modulation; Noise; Receivers; Tracking loops; ASPeCT; DET; Galileo; Tracking;
Conference_Titel :
Satellite Navigation Technologies and European Workshop on GNSS Signals and Signal Processing (NAVITEC), 2010 5th ESA Workshop on
Conference_Location :
Noordwijk
Print_ISBN :
978-1-4244-8740-0
DOI :
10.1109/NAVITEC.2010.5708070
