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International Journal of Applied Science and Engineering Scopus

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篇名 Fast Discrete Wavelet Transformation Using FPGAs and Distributed Arithmetic
卷期 1:2
作者 Ali M. Al-Haj
頁次 160-171
關鍵字 discrete wavelet transformdistributed arithmeticFPGA implementationScopus
出刊日期 200309

中文摘要

The discrete wavelet transform has gained the reputation of being a very effective signal analysis tool for many practical applications. However, due to its computation-intensive nature, current implementations of the transform fall short of meeting real-time processing requirements of most applications. This paper describes a parallel implementation of the discrete wavelet transform and its inverse using high-density field programmable logic devices (FPGAs). The implementation exploits the lookup table-based architecture of Virtex FPGAs, by reformulating the wavelet computation in accordance with the distributed arithmetic algorithm. Performance results show that the distributed arithmetic formulation results in a considerable performance gain compared with the conventional arithmetic formulation of the wavelet computation. Finally, we show that the FPGA implementation outperforms alternative software implementations of the discrete wavelet transform.

英文摘要

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