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Realization of Multi-Delay Filter using Fermat Number Transforms

Hamzé Alaeddine El Houssaïn Baghious 1 Guillaume Madre Gilles Burel 1
1 Lab-STICC_UBO_CACS_COM
Lab-STICC - Laboratoire des sciences et techniques de l'information, de la communication et de la connaissance, UBO - Université de Brest
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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https://hal.univ-brest.fr/hal-00395192
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Submitted on : Monday, June 15, 2009 - 11:10:48 AM
Last modification on : Monday, March 14, 2022 - 11:08:10 AM

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  • HAL Id : hal-00395192, version 1

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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, Institute of Electronics, Information and Communication Engineers, 2008, E91-A (9), pp.2571-2577. ⟨hal-00395192⟩

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