Design of RNS-based distributed arithmetic DWT filterbanks

Author

Ramírez, J. ; García, A. ; Bäse, U. Meyer ; Taylor, F. ; Fernández, P.G. ; Lloris, A.

Author_Institution

Granada Univ., Spain

Volume

2

fYear

2001

fDate

2001

Firstpage

1193

Abstract

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

Keywords

application specific integrated circuits; digital filters; digital signal processing chips; discrete wavelet transforms; distributed arithmetic; field programmable gate arrays; residue number systems; 2C-DA; RNS-based distributed arithmetic DWT filterbanks; cell-based ASIC; digital signal processing; discrete wavelet transform; field-programmable logic; residue number system; Application specific integrated circuits; Arithmetic; Digital signal processing; Discrete wavelet transforms; Field programmable gate arrays; Filter bank; Integrated circuit technology; Programmable logic arrays; System-on-a-chip; Table lookup;

fLanguage

English

Publisher

ieee

Conference_Titel

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

Conference_Location

Salt Lake City, UT

ISSN

1520-6149

Print_ISBN

0-7803-7041-4

Type

conf

DOI

10.1109/ICASSP.2001.941137

Filename

941137