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Subband Affine Projection Algorithm  

Choi, Hun (충북대학교 전자공학과)
Bae, Hyeon Deok (충북대학교 전자공학과)
Publication Information
The Journal of the Acoustical Society of Korea / v.23, no.3, 2004 , pp. 221-227 More about this Journal
Abstract
This paper presents the subband affine projection algorithm(SAPA). The improved performance of SAPA is achieved by applying the affine projection algorithm to the subband adaptive structure. In this algorithm, the weight updating formula of adaptive filter is simply derived by using the orthogonal quadrature filter(OQF) as an analysis filter bank for subband filtering. The derived SAPA has the fast convergence speed and small computational complexity. The efficiency of the proposed algorithm for colored input signal is evaluated through some experiments.
Keywords
Adaptive filter; Affine projection algorithm; Subband structure; Orthogonal filter; Echo cancellation;
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