Fast DWT based FPGA implementation for medical application
31-36
20.Cnf-79 Paper View Page
Title
Fast DWT based FPGA implementation for medical application
Authors
Mr. Lotfi Bendaouia, Ecole Nationale Supérieure de l'Electronique et de ses Applications, Cergy Pontoise, France Mr. Fayçal Ykhlef, Centre de Développement des Technologies Avancées, Algiers, Algeria Mrs. Wahiba Benzaba, Centre de Développement des Technologies Avancées, Algiers, Algeria Mr. Oussama Kerdjidj, Centre de Développement des Technologies Avancées, Algiers, Algeria Mr. Hamid Meraoubi, Centre de Développement des Technologies Avancées, Algiers, Algeria Prof. Omar Zemirli, , , Dr. Hassen Daoud, Douéra Hospital, Algiers, Algeria Dr. Si Mahmoud Karabernou, , , Dr. Lounis Kessal, Ecole Nationale Supérieure de l'Electronique et de ses Applications, Cergy Pontoise, France Dr. Hassen Salhi, Université Saad Dahlab Blida, Blida, Algeria
Abstract
This paper presents an implementation on FPGA of a one dimension discrete wavelet transform (1DWT) for simulation of a medical application dealing with hearing loss. The Digital DWT (DDWT) can be viewed as a multi-resolution decomposition of a signal which means that it decomposes the signals into its principal components in different frequency bands (octaves bands). This configuration is matching model to our designed artificial cochlear membrane (ACM).
It is proposed a new design approach of an architecture based on parallel FIR filters by considering the implementation of a three level DWT. The proposed architecture offers 16 bits on input and output data, yielding to high performance precision.
It is constituted on register banks, a control unit and FIR filters.
The filters are of different lengths and with coefficients derived from FIR filter coefficients using Matlab / Simulink. The designed system can compute DWT at a typical frequency clock over 100 Mhz which easily reach a real time processing for speech enhancement.
The system is evaluated using VHDL implementation over Virtex 6 (XC6SLX45T) of Xillinx which includes 58 (DSP48A1) slices. The results are compared to that obtained by Matlab simulation.
1st Mosharaka International Conference on Communications and Signal Processing (MIC-CSP 2011)
Congress
2011 Global Congress on Communications and Signal Processing (GC-CSP 2011), 2-4 April 2011, Dubai, UAE
Pages
31-36
Topics
Digital Filter Design and Structures Wavelet Processing
ISSN
2227-331X
DOI
BibTeX
@inproceedings{79CSP2011,
title={Fast DWT based FPGA implementation for medical application},
author={Lotfi Bendaouia, and Fayçal Ykhlef, and Wahiba Benzaba, and Oussama Kerdjidj, and Hamid Meraoubi, and Omar Zemirli, and Hassen Daoud, and Si Mahmoud Karabernou, and Lounis Kessal, and Hassen Salhi},
booktitle={2011 Global Congress on Communications and Signal Processing (GC-CSP 2011)},
year={2011},
pages={31-36},
doi={}},
organization={Mosharaka for Research and Studies}
}
