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Journal Articles IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences Year : 2008

Realization of Multi-Delay Filter using Fermat Number Transforms

Hamzé Alaeddine
  • Function : Author
El Houssaïn Baghious
Guillaume Madre
  • Function : Author
Gilles Burel

Abstract

This paper is about an efficient implementation of adaptive filtering for echo cancelers. The first objective of this paper is to propose a simplified method of the flexible block Multi-Delay Filter (MDF) algorithm in the time-domain. Then, we will derive a new method for the step-size adaptation coefficient. The second objective is about the realization of a Block Proportionate Normalized Least Mean Squares (BPNLMS++) with the simplified MDF (SMDF) implementation. Using the new step-size method and the smaller block dimension proposed by SMDF, we achieve a faster convergence of the adaptive process with a limited computational cost. Then, an efficient implementation of the new procedure (SMDF-BPNLMS++) block filtering is proposed using Fermat Number Transform, which can significantly reduce the computation complexity of filter implantation on Digital Signal Processor.
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Dates and versions

hal-00395192 , version 1 (15-06-2009)

Identifiers

  • HAL Id : hal-00395192 , version 1

Cite

Hamzé Alaeddine, El Houssaïn Baghious, Guillaume Madre, Gilles Burel. Realization of Multi-Delay Filter using Fermat Number Transforms. IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences, 2008, E91-A (9), pp.2571-2577. ⟨hal-00395192⟩
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