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- Title
A New Indoor Positioning System Architecture Using GPS Signals.
- Authors
Rui Xu; Wu Chen; Ying Xu; Shengyue Ji
- Abstract
The pseudolite system is a good alternative for indoor positioning systems due to its large coverage area and accurate positioning solution. However, for common Global Positioning System (GPS) receivers, the pseudolite system requires some modifications of the user terminals. To solve the problem, this paper proposes a new pseudolite-based indoor positioning system architecture. The main idea is to receive real-world GPS signals, repeat each satellite signal and transmit those using indoor transmitting antennas. The transmitted GPS-like signal can be processed (signal acquisition and tracking, navigation data decoding) by the general receiver and thus no hardware-level modification on the receiver is required. In addition, all Tx can be synchronized with each other since one single clock is used in Rx/Tx. The proposed system is simulated using a software GPS receiver. The simulation results show the indoor positioning system is able to provide high accurate horizontal positioning in both static and dynamic situations.
- Subjects
GLOBAL Positioning System; COMPUTER terminals; COMPUTER users; COMPUTER software; RECEIVING antennas
- Publication
Sensors (14248220), 2015, Vol 15, Issue 5, p10074
- ISSN
1424-8220
- Publication type
Article
- DOI
10.3390/s150510074