Title :
New prefilter structure for designing FIR filters
Author :
Lian, Yong ; Lim, Yang Choon
Author_Institution :
Nat. Univ. of Singapore, Singapore
fDate :
5/27/1993 12:00:00 AM
Abstract :
A new prefilter structure is presented. The frequency response of the prefilter structure is derived from the combination of two cosine functions. By cascading these prefilters with an appropriate equaliser, low complexity filters with high stop-band attenuation can be achieved. The proposed prefilter leads to a significant saving in the number of arithmetic operations in the prefilter-equaliser cascade structure.
Keywords :
digital filters; filtering and prediction theory; frequency response; FIR filters; arithmetic operations; cosine functions; frequency response; high stop-band attenuation; low complexity filters; prefilter structure; prefilter-equaliser cascade;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19930692
