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VLSI Implementation for the MPDSAP Adaptive Filter  

Choi, Hun (Dong-Eui University of Busan, Korea)
Kim, Young-Min (Dong-Eui University of Busan, Korea)
Ha, Hong-Gon (Dong-Eui University of Busan, Korea)
Publication Information
Journal of the Institute of Convergence Signal Processing / v.11, no.3, 2010 , pp. 238-243 More about this Journal
Abstract
A new implementation method for MPDSAP(Maximally Polyphase Decomposed Subband Affine Projection) adaptive filter is proposed. The affine projection(AP) adaptive filter achieves fast convergence speed, however, its implementation is so expensive because of the matrix inversion for a weight-updating of adaptive filter. The maximally polyphase decomposed subband filtering allows the AP adaptive filter to avoid the matrix inversion, moreover, by using a pipelining technique, the simple subband structured AP is suitable for VLSI implementations concerning throughput, power dissipation and area. Computer simulations are presented to verify the performance of the proposed algorithm.
Keywords
Affine Projection; Subband Filtering; VLSI implementation; Pipelining; Acoustic echo cancellation;
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