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 language | English |
|---|---|
| Pages (from-to) | 347-359 |
| Number of pages | 13 |
| Journal | IEEE Transactions on Aerospace and Electronic Systems |
| Volume | 45 |
| Issue number | 1 |
| DOIs | |
| Publication status | Published - 7 May 2009 |
| Externally published | Yes |
Keywords
- Global Navigation Satellite Systems
- Global Positioning System
- Receivers
- Receiving antennas
- Repeaters
- Satellites
- Switches
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