Articles liés à Rapid Acquisition in Direct-Sequence/Spread-Spectrum...

Rapid Acquisition in Direct-Sequence/Spread-Spectrum Systems: Iterative Message-Passing-Based Algorithms to Fast Acquire Spreading Sequences - Couverture souple

Principe, Fabio

 
9783639191936: Rapid Acquisition in Direct-Sequence/Spread-Spectrum Systems: Iterative Message-Passing-Based Algorithms to Fast Acquire Spreading Sequences
Couverture souple
ISBN 10 : 3639191935 ISBN 13 : 9783639191936
Editeur : VDM Verlag, 2009

Synopsis

This book tackles the issue of the rapid acquisition of spreading codes in Direct-Sequence/Spread-Spectrum systems. In particular, a new algorithm is proposed that exploits the experience of the iterative decoding of modern codes to detect these sequences. This new method is a Message-Passing-based algorithm. Specifically, instead of correlating the received signal with local replicas of the transmitted Linear-Feedback-Shift-Register sequence, an iterative Message-Passing (MP) algorithm is implemented to be run on a loopy graph. Thus, this work is an analysis of the detection technique based on MP algorithms to acquire m-Sequences and Gold codes. In detail, an unified treatment to design and implement a specific set of graphical models for these codes is reported. A theoretical study on the acquisition time performance and the comparison to the standard algorithms is done. A preliminary architectural design is also provided. Finally, the analysis is also enriched by comparing this new technique to the standard algorithms in terms of computational complexity and (missed/wrong/correct) acquisition probabilities as derived by simulations.

Les informations fournies dans la section « Synopsis » peuvent faire référence à une autre édition de ce titre.

Présentation de l'éditeur

This book tackles the issue of the rapid acquisition of spreading codes in Direct-Sequence/Spread-Spectrum systems. In particular, a new algorithm is proposed that exploits the experience of the iterative decoding of modern codes to detect these sequences. This new method is a Message-Passing-based algorithm. Specifically, instead of correlating the received signal with local replicas of the transmitted Linear-Feedback-Shift-Register sequence, an iterative Message-Passing (MP) algorithm is implemented to be run on a loopy graph. Thus, this work is an analysis of the detection technique based on MP algorithms to acquire m-Sequences and Gold codes. In detail, an unified treatment to design and implement a specific set of graphical models for these codes is reported. A theoretical study on the acquisition time performance and the comparison to the standard algorithms is done. A preliminary architectural design is also provided. Finally, the analysis is also enriched by comparing this new technique to the standard algorithms in terms of computational complexity and (missed/wrong/correct) acquisition probabilities as derived by simulations.

Biographie de l'auteur

F. Principe received the PhD grade in Information Engineering from the University of Pisa. He collaborated with INTECS SpA and LABEN SpA. He also spent 7 months at the Communication Sciences Institute USC, in Los Angeles. Currently, he works in IDS SpA. His research interests lie in the broad area of communication and satellite positioning systems.

Les informations fournies dans la section « A propos du livre » peuvent faire référence à une autre édition de ce titre.

Éditeur
VDM Verlag
Date d'édition
2009
Langue
anglais
ISBN 10 
3639191935
ISBN 13 
9783639191936
Reliure
Broché
Nombre de pages
164
Coordonnées du fabricant
non disponible
Personne responsable
non disponible