Title :
Cross-Band Aided Code Acquisition in Dual-Band GNSS Receivers
Author :
Deambrogio, Lina ; Bastia, Francesco ; Palestini, Caterina ; Perdone, Raffaella ; Villanti, M. ; Corazza, Giovanni Emanuale
Author_Institution :
Signal Process. Lab., Ecole Nat. de l´Aviation Civile (ENAC), Toulouse, France
Abstract :
The problem of fast code acquisition in dual-band Galileo receivers is tackled. The proposed techniques exploit the Galileo E1 and E5 Open Service signals structure, implementing a cross-band aiding approach that yields mutual assistance in code synchronization adopting a master/slave configuration. The schemes are analyzed in terms of mean acquisition time (MAT) introducing the procedure flow-graph and overall mean acquisition time (OMAT). Numerical evaluation shows enhanced OMAT performance w.r.t. autonomous dual-band acquisition, guaranteeing complexity reduction.
Keywords :
computational complexity; flow graphs; radio receivers; satellite navigation; synchronisation; Galileo E1 open service signal structure; Galileo E5 open service signal structure; OMAT performance; code synchronization; complexity reduction; cross-band aided code acquisition; cross-band aiding approach; dual-band GNSS receivers; dual-band Galileo receivers; fast code acquisition; flow-graph; master-slave configuration; numerical evaluation; overall mean acquisition time; Complexity theory; Correlation; Delays; Dual band; Global Navigation Satellite Systems; Receivers; Synchronization;
Journal_Title :
Aerospace and Electronic Systems, IEEE Transactions on
DOI :
10.1109/TAES.2013.6621834
