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Design of RNS-based distributed arithmetic DWT filterbanks

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6 Author(s)

The need for both speed and increased precision in modern digital signal processing (DSP) applications represents a serious implementation obstacle. The paper explores the arithmetic benefits provided by the residue number system (RNS) for the design of such systems. Specifically, the fusion of the RNS with the popular distributed arithmetic (DA) is considered for the implementation of a discrete wavelet transform (DWT) filter bank. An exhaustive comparison of the advantages of RNS-DA over the traditional two's complement design, 2C-DA, is carried out for field-programmable logic (FPL), and cell-based ASIC technologies. The results show that the reported RNS-DA methodology, compared to a traditional 2C-DA design, enjoys a significant performance advantage that increases with precision

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Acoustics, Speech, and Signal Processing, 2001. Proceedings. (ICASSP '01). 2001 IEEE International Conference on  (Volume:2 )

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