S. Samadi et al., MULTIPLIERLESS ARRAYS FOR REALIZATION OF LOWPASS AND HIGHPASS LINEAR-PHASE FIR DIGITAL-FILTERS, IEICE transactions on fundamentals of electronics, communications and computer science, E79A(8), 1996, pp. 1112-1119
Citations number
13
Categorie Soggetti
Engineering, Eletrical & Electronic","Computer Science Hardware & Architecture","Computer Science Information Systems
A class of type 1 linear phase FIR digital filters is proposed, The fi
lter can be realized using a parallel, modular and regular array struc
ture. It is shown that, under some simple constraints, the consisting
modules of the array can be realized free of multiplier coefficients.
Such two dimensional mesh arrays are specially suitable for realizatio
n with special-purpose systolic hardware for high-speed digital signal
processing tasks. Compared to the array structure, proposed by the au
thors, for multiplierless realization of maximally flat FIR digital fi
lters, this class needs less adders to fulfill the same magnitude resp
onse requirements. Another attractive property of the proposed array i
s that a number of highpass or lowpass filters with different passband
widths can be realized simultaneously in a very economical way.