Title :
Multiplier-free IIR filter realizations with periodically time-varying coefficients
Author :
Tantaratana, Sawasd
Author_Institution :
Nat. Electron. & Comput. Technol. Center, Bangkok, Thailand
Abstract :
In this paper, we extend the periodically time-varying (PTV) filter realization, which was proposed for the FIR filter, to be used for IIR filters. The realization consists of ternary ({0, ±1}) or quinary ({0, ±1, ±2}) PTV coefficients with simple input and output units. The coefficients as well as the input and output units require no hardware multiplier. This simplifies the layout for VLSI implementation and increases the processing speed
Keywords :
IIR filters; VLSI; digital filters; filtering theory; IIR filter realizations; VLSI implementation; multiplier-free filter realizations; periodically time-varying coefficients; Delta-sigma modulation; Digital filters; Finite impulse response filter; Hardware; IIR filters; Poles and towers; Quantization; Read only memory; Registers; Very large scale integration;
Conference_Titel :
Circuits and Systems, 1996., IEEE Asia Pacific Conference on
Conference_Location :
Seoul
Print_ISBN :
0-7803-3702-6
DOI :
10.1109/APCAS.1996.569227
