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

Research output: Contribution to journalArticlepeer-review

Abstract

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.

Original languageEnglish
Pages (from-to)347-359
Number of pages13
JournalIEEE Transactions on Aerospace and Electronic Systems
Volume45
Issue number1
DOIs
Publication statusPublished - 7 May 2009
Externally publishedYes

Keywords

  • Global Navigation Satellite Systems
  • Global Positioning System
  • Receivers
  • Receiving antennas
  • Repeaters
  • Satellites
  • Switches

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