Please use this identifier to cite or link to this item: https://doi.org/10.1109/APCC.2005.1554216
Title: Mobile localization using subspace tracking
Authors: Bartelmaos, S.
Abed-Meraim, K.
Attallah, S. 
Issue Date: 2005
Source: Bartelmaos, S., Abed-Meraim, K., Attallah, S. (2005). Mobile localization using subspace tracking. 2005 Asia-Pacific Conference on Communications 2005 : 1009-1013. ScholarBank@NUS Repository. https://doi.org/10.1109/APCC.2005.1554216
Abstract: Time-of-arrival (TOA) and direction-of-arrival (DOA) based methods are essential for mobile positioning in UMTS networks. Because of the presence of closely spaced multipaths, timing errors will occur when standard correlation based estimation methods are applied. To mitigate this problem, we propose here to use first a rough estimate of the desired TOA followed by T-MUSIC algorithm for a refinement of this estimate. The latter algorithm is implemented using a modified version of the adaptive subspace tracking algorithm OPAST (Orthogonal Projection Approximation Subspace Tracking) for the extraction and tracking of the principal subspace of a positive Hermitian covariance matrix. Computer simulations prove the numerical stability of the modified OPAST and the good estimation & tracking performance of the proposed method in typical propagation environments. © 2005 IEEE.
Source Title: 2005 Asia-Pacific Conference on Communications
URI: http://scholarbank.nus.edu.sg/handle/10635/70965
ISBN: 0780391322
DOI: 10.1109/APCC.2005.1554216
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