Comb-Based Filter Design Using Sharpening Technique and Certain Palindromic Polynomial

Abstract

This paper presents a novel approach to improve aliasing rejection in combbased decimation filters. The method is established on certain palindromic polynomials with all zeros on the unit circle and the sharpening technique. As a result, aliasing rejection and the passband characteristic are improved. The method is illustrated with various examples and compared with the methods from the literature.