Title :
FIR filter implementation by efficient sharing of horizontal and vertical common subexpressions
Author :
Vinod, A.P. ; Lai, E.M.-K. ; Premkuntar, A.B. ; Lau, C.T.
Author_Institution :
Sch. of Comput. Eng., Nanyang Technol. Univ., Singapore
fDate :
1/23/2003 12:00:00 AM
Abstract :
The vertical common subexpression elimination (CSE) method proposed by Jang et al. (2002) does not guarantee hardware reduction over the conventional horizontal CSE method in practical linear phase finite impulse response (LPFIR) filter implementations. A method to implement FIR filters with a minimum number of adders by efficiently combining horizontal and vertical common subexpressions is proposed.
Keywords :
FIR filters; digital arithmetic; linear phase filters; FIR filter implementation; Parks-McClellan design; hardware reduction; horizontal common subexpressions; linear phase finite impulse response filter implementations; minimum adder implementation; multiple constant multiplications; vertical common subexpression elimination method; vertical common subexpressions;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:20030150
