Indoor positioning using LTE signals
Внутридомовая позиционирование с использованием сигналов LTE
2016-10-01
SCID: 54.1/mp84yufg
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EKFExtended Kalman FilterGNSS denialIndoor positioningLTE signalsLong-Term EvolutionMovement trackingPositioning error < 8m (50th percentile)TOA extractionTime of Arrival
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Abstract (AI)
This paper presents an experiment using real Long-Term Evolution (LTE) signals to extend positioning from outdoors to indoors. LTE signals are of interest for positioning applications because of their availability indoors, where GNSS signal reception is limited. Different approaches for time of arrival (TOA) extraction are evaluated for their positioning performance, combined with an extended Kalman filter (EKF) for movement tracking. The paper shows that the performance is surprisingly good, with high visibility of cellular signals even in the difficult indoor test environment, and with a positioning error once indoors smaller than 8m in 50% of cases.
Key Findings
1
Cellular LTE signals showed high visibility even in a difficult indoor test environment.
2
Different Time of Arrival (TOA) extraction approaches were evaluated and combined with an Extended Kalman Filter for movement tracking.
3
Positioning error indoors was less than 8 meters in 50% of cases.
4
Real LTE signals can be used to extend positioning capability from outdoors to indoors where GNSS reception is limited.
Research Object
Indoor positioning system using real Long-Term Evolution (LTE) signals
Research Subject
Positioning performance and movement tracking using TOA extraction methods combined with an extended Kalman filter (EKF), evaluated for indoor use (positioning error, signal visibility)
Publication Details
Publication Date
2016-10-01
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