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Kalman Filtering of TOA Sequences and CWLS for Cellular Positioning

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5 Author(s)
M. Bora Zeytinci ; Elektrik-Elektronik Mühendisli¿i Bölümü, Bo¿aziç Üniversitesi, ¿stanbul. e-posta: ; Fernaz Alimoglu ; F. Kerem Harmanci ; Emin Anarim
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A method to mitigate the effects of non-line-of-sight (NLOS) errors in time-of-arrival (TOA) based cellular positioning is proposed. TOA readings are initially classified as LOS or NLOS and Kalman filtered for each base station (BS)-mobile station (MS) combination. After Kalman tracking the TOA/range sequences, range information for multiple BS's and one MS is converted to the MS's position information through a constrained weighted least squares technique (CWLS). Simulation results demonstrate the utility of the proposed algorithm.

Published in:

2007 IEEE 15th Signal Processing and Communications Applications

Date of Conference:

11-13 June 2007