Indoor positioning based on GPS-repeaters : performance enhancement using an open code loop architecture

Nabil Jardak (1, 2, 3) , Nel Samama (1)

1 TSP - EPH - Département Electronique et Physique
2 SAMOVAR - Services répartis, Architectures, MOdélisation, Validation, Administration des Réseaux
3 CNRS - Centre National de la Recherche Scientifique

Indoor localization systems are now increasingly needed in supporting location-based services (LBS). We carry out a theoretical study of an indoor positioning technique based on sequential switching. It uses available global positioning System (GPS) signals and simple deployment of so-called "GPS repeaters." The delay-lock loop (DLL) architecture of a GPS receiver has been modified into an open DLL to improve indoor positioning performance. A comparison study between simulation results using a standard GPS receiver and an improved one shows that the latter allows submetrical accuracy to be achieved.

Domaines: Réseaux et télécommunications [cs.NI]; Traitement du signal et de l'image [eess.SP]

Nabil Jardak, Nel Samama. Indoor positioning based on GPS-repeaters : performance enhancement using an open code loop architecture. IEEE Transactions on Aerospace and Electronic Systems, 2009, 45 (1), pp.347-359. ⟨10.1109/TAES.2009.4805284⟩. ⟨hal-00472521⟩