International Journal of Navigation and Observation 
Volume 2008 (2008), Article ID 793868, 9 pages
doi:10.1155/2008/793868
Research Article

Comparison between Galileo CBOC Candidates and BOC(1,1) in Terms of Detection Performance

Fabio Dovis,1 Letizia Lo Presti,1 Maurizio Fantino,2 Paolo Mulassano,2 and Jérémie Godet3

 1Dipartimento di Elettronica, Politecnico di Torino, Corso Duca degli Abruzzi 24, 10138 Torino, Italy
2Istituto Superiore Mario Boella, Corso Castelfidardo 30/A, 10138 Torino, Italy
3Galileo Unit, European Commission DG-Tren, 28 Rue de Mot, 1049 Brussels, Belgium
Received 31 July 2007; Revised 30 December 2007; Accepted 25 February 2008

Recommended by Gerard Lachapelle

Abstract

Many scientific activities within the navigation field have been focused on the analysis of innovative modulations for both GPS L1C and Galileo E1 OS, after the 2004 agreement between United States and European Commission on the development of GPS and Galileo. The joint effort by scientists of both parties has been focused on the multiplexed binary offset carrier (MBOC) which is defined on the basis of its spectrum, and in this sense different time waveforms can be selected as possible modulation candidates. The goal of this paper is to present the detection performance of the composite BOC implementation of an MBOC signal in terms of detection and false alarm probabilities. A comparison among the CBOC and BOC(1,1) modulations is also presented to show how the CBOC solution, designed to have excellent tracking performance and multipath rejection capabilities, does not limit the acquisition process.