GNSS/Cellular Hybrid Positioning System for Mobile Users in Urban Scenarios

Publication Type  Journal Article
Year of Publication  2012
Authors  De_Angelis, G.; Baruffa, G.; Cacopardi, S.
Journal Title  IEEE Transactions on Intelligent Transportation Systems
Volume  PP
Issue  99
Pages  1-9
Journal Date  Early Access
Publisher  IEEE
ISSN Number  1524-9050
Abstract  

This paper proposes a hybrid scheme for user positioning in an urban scenario using both a Global Navigation Satellite System (GNSS) and a mobile cellular network. In order to maintain receiver complexity (and costs) at a minimum, the location scheme combines the Time Difference Of Arrival (TDOA) technique measurements obtained from the cellular network with GNNS pseudorange measurements. The extended Kalman filter algorithm is used as data fusion system. Simulated results, obtained starting from real measurements, demonstrate that the use of cellular network data may provide increased location accuracy when the number of visible satellites is not adequate. In every case, the obtained accuracy is within the limits required by emergency location services, e.g., Enhanced 911 (E911).
URL  http://ieeexplore.ieee.org/xpl/articleDetails.jsp?tp=&arnumber=6307871
DOI  10.1109/TITS.2012.2215855
Citation Key  deangelis2012
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