A Class of Selective CIC FIR Filter Functions

Abstract

A new class of modified selective multiplerless Cascaded-Integrator-Comb (CIC) finite impulse response (FIR) filter functions with application in modern communication systems, which have superior performances compared to the classical CIC filter functions are presented here. A few design examples that illustrate the properties of the proposed filter class are also presented. Novel filter functions have a minimum attenuation of 166.52 dB, 258.56 dB and 350.46 dB, respectively. The achieved improvements versus classical CIC filters are 29.84 dB, 34.90 dB and 39.82 dB, respectively.

Keywords

• CIC filters
• FIR filters
• linear phase
• multiplierless structure
• selective filters