A single-channel ROM-based complex digital filter implementation in the quadratic residue number systems

Author

Krishnan, Ramasamy

Author_Institution

Dept. of Electr. Eng., South Alabama Univ., Mobile, AL, USA

fYear

1988

fDate

11-14 Apr 1988

Firstpage

1842

Abstract

The implementation of complex digital filters using the quadratic residue number system (QRNs) and modified quadratic residue number system (MQRNS) is considered. These QRNS/MQRNS-based filter architectures are memory-intensive because the lookup-table approach has been used in the filter implementation. If the required number of lookup tables is reduced to a reasonable extent, single-chip VLSI implementation of such architectures may become practically feasible. A dual-clock computational module has been proposed to reduce the number of memory requirements in the QRNS/MQRNS-based complex digital filters. A direct FIR (finite-impulse response) filter architecture has been implemented using the proposed computational module in the QRNS and MQRNS schemes

Keywords

digital filters; filtering and prediction theory; read-only storage; table lookup; FIR filter; ROM; dual-clock computational module; filter architectures; finite-impulse response; lookup-table; modified quadratic residue number system; quadratic residue number systems; single-chip VLSI; Computer architecture; Digital filters; Digital signal processing; Finite impulse response filter; Hardware; Memory architecture; Random access memory; Read only memory; Table lookup; Very large scale integration;

fLanguage

English

Publisher

ieee

Conference_Titel

Acoustics, Speech, and Signal Processing, 1988. ICASSP-88., 1988 International Conference on

Conference_Location

New York, NY

ISSN

1520-6149

Type

conf

DOI

10.1109/ICASSP.1988.196981

Filename

196981