Open AccessCompensated CIC-Cosine Decimation Filter
Author(s) -
Gordana Jovanovic Dolecek,
F.J.T. Torres
Publication year - 1970
Publication title -
ecti transactions on computer and information technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.132
H-Index - 2
ISSN - 2286-9131
DOI - 10.37936/ecti-cit.201041.54219
Subject(s) - passband , decimation , raised cosine filter , elliptic filter , butterworth filter , low pass filter , capacitor input filter , transition band , prototype filter , filter (signal processing) , high pass filter , band stop filter , stopband , cascaded integrator–comb filter , filter design , computer science , control theory (sociology) , all pass filter , root raised cosine filter , mathematics , electronic engineering , band pass filter , engineering , artificial intelligence , control (management) , computer vision
This paper presents efficient modification of the CICcosine decimation filter. The second order compensator filter is introduced at low rate in order to improve the passband of interest of the overall filter. The coefficients of the compensator filter are presented in a canonical signed digits (CSD) form, and can be implemented using only adders and shifts. Consequently, the resulting filter is a multiplierfree filter and exhibits a high attenuation in the stopband, as well as a low passband droop.