Open AccessUltra‐selective lowpass linear‐phase FIR filter function
Author(s) -
Perić S. Lj.,
Antić D.S.,
Pavlović V.D.,
Nikolić S.S.,
Milojković M.T.
Publication year - 2013
Publication title -
electronics letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.375
H-Index - 146
eISSN - 1350-911X
pISSN - 0013-5194
DOI - 10.1049/el.2012.4475
Subject(s) - low pass filter , linear phase , control theory (sociology) , finite impulse response , high pass filter , linear filter , filter (signal processing) , prototype filter , mathematics , electronic engineering , computer science , algorithm , engineering , artificial intelligence , electrical engineering , control (management)
A new ultra‐selective lowpass finite impulse response (FIR) filter function is proposed. First, a new difference equation with all coefficients equals one, and the general structure of the corresponding linear‐phase lowpass digital filter is given. Then, the high economical realisation with only four adders and without multipliers, for any filter order is presented. The concrete example of the proposed filter, compared to the already existing filters, demonstrates a higher selectivity, lower passband and circuit of lower complexity.