Open AccessOptimum multiplierless compensators for sharpened cascaded‐integrator‐comb decimation filters
Author(s) -
Dudarin A.,
Molnar G.,
Vucic M.
Publication year - 2018
Publication title -
electronics letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.375
H-Index - 146
ISSN - 1350-911X
DOI - 10.1049/el.2018.5114
Subject(s) - passband , integrator , decimation , control theory (sociology) , voltage droop , mathematics , finite impulse response , cascaded integrator–comb filter , cascade , sharpening , transition band , predistortion , filter (signal processing) , low pass filter , prototype filter , electronic engineering , computer science , algorithm , engineering , band pass filter , voltage , telecommunications , bandwidth (computing) , amplifier , artificial intelligence , control (management) , voltage divider , computer vision , chemical engineering , electrical engineering
Folding band sharpening of the cascaded‐integrator‐comb filter results in a high passband droop. In applications requiring low passband deviation, the droop is reduced by connecting a low‐order FIR compensator in cascade with the filter. In this Letter, the authors present a method for optimum design of compensators whose coefficients are expressed as sums of signed‐power‐of‐two terms. The method is based on the minimisation of passband deviation, with specified total number of terms.