Title :
Index-based RNS DWT architectures for custom IC designs
Author :
Ramirez, J. ; Fernández, P.G. ; Meyer-Bäse, U. ; Taylor, F. ; Garcia, A. ; Lloris, A.
Author_Institution :
Dept. of Electron. & Comput. Technol., Granada Univ., Spain
fDate :
6/23/1905 12:00:00 AM
Abstract :
The design of high-performance, high-precision, real-time digital signal processing (DSP) systems, such as those associated with wavelet signal processing, is a challenging problem. This paper reports on the innovative use of the residue number system (RNS) for implementing high-end wavelet filter banks. The disclosed system uses an enhanced index-transformation defined over Galois fields to efficiently support different wavelet filter instantiations without adding any extra cost or additional lookup tables (LUT). An exhaustive comparison against existing two´s complement (2C) designs for different custom IC technologies was carried out. These structures have been demonstrated to be well suited for field programmable logic (FPL) assimilation as well as for CBIC (cell-based integrated circuit) technologies
Keywords :
Galois fields; application specific integrated circuits; channel bank filters; digital arithmetic; digital signal processing chips; discrete wavelet transforms; image processing; programmable logic devices; residue number systems; table lookup; DSP systems; Galois fields; arithmetic system; cell-based integrated circuit; custom IC designs; digital image processing; digital signal processing systems; field programmable logic; index-based RNS DWT architectures; lookup tables; residue number system; two´s complement designs; wavelet filter banks; wavelet signal processing; Costs; Digital signal processing; Discrete wavelet transforms; Filter bank; Galois fields; Integrated circuit technology; Programmable logic arrays; Real time systems; Signal design; Table lookup;
Conference_Titel :
Signal Processing Systems, 2001 IEEE Workshop on
Conference_Location :
Antwerp
Print_ISBN :
0-7803-7145-3
DOI :
10.1109/SIPS.2001.957332
