A Prewhitening RLS based PAST (Projection Approximation Subspace-Tracking) Algorithm for Time Varying Signal Subspace Tracking 


Vol. 34,  No. 2, pp. 69-73, Feb.  2009


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  Abstract

In this paper, we propose a new PAST algorithm for principle component-extracting. For the performance improvement, we apply prewhitening RLS and variable forgetting factor to the conventional PAST. The prewhitening RLS and the variable forgetting factor make it numerically robust and agile to nonstationary. The estimation capability of the proposed algorithm is demonstrated by computer simulations of DOA(Degree of Arrival). The estimation results of the proposed PAST outperform those of ordinary PAST.

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  Cite this article

[IEEE Style]

J. Lim and Y. Pyeon, "A Prewhitening RLS based PAST (Projection Approximation Subspace-Tracking) Algorithm for Time Varying Signal Subspace Tracking," The Journal of Korean Institute of Communications and Information Sciences, vol. 34, no. 2, pp. 69-73, 2009. DOI: .

[ACM Style]

Jun-Seok Lim and Yong-Kug Pyeon. 2009. A Prewhitening RLS based PAST (Projection Approximation Subspace-Tracking) Algorithm for Time Varying Signal Subspace Tracking. The Journal of Korean Institute of Communications and Information Sciences, 34, 2, (2009), 69-73. DOI: .

[KICS Style]

Jun-Seok Lim and Yong-Kug Pyeon, "A Prewhitening RLS based PAST (Projection Approximation Subspace-Tracking) Algorithm for Time Varying Signal Subspace Tracking," The Journal of Korean Institute of Communications and Information Sciences, vol. 34, no. 2, pp. 69-73, 2. 2009.

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pISSN : 1226 - 4717
eISSN : 2287 - 3880