The Journal of the Acoustical Society of Korea

The Acoustical Society of Korea (한국음향학회)
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Forward Backward PAST (Projection Approximation Subspace Tracking) Algorithm for the Better Subspace Estimation Accuracy

  • Lim, Jun-Seok (Department of Electronics Engineering Sejong University)
  • Published : 2008.03.31
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Abstract

The projection approximation subspace tracking (PAST) is one of the attractive subspace tracking algorithms, because it estimatesthe signal subspace adaptively and continuously. Furthermore, the computational complexity is relatively low. However, the algorithm still has room for improvement in the subspace estimation accuracy. In this paper, we propose a new algorithm to improve the subspace estimation accuracy using a normally ordered input vector and a reversely ordered input vector simultaneously.

Keywords

References

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