COMPARISON OF CLASSICAL CIC AND A NEW CLASS OF IMPROVED CIC FILTERS FORMED BY CASCADING NON-IDENTICAL COMB SECTIONS

Dejan N. Milic, Vlastimir D. Pavlović

DOI Number
10.2298/FUEE1601061M
First page
61
Last page
76

Abstract


In this paper we propose a new class of selective CIC filters in recursive and nonrecursive form. We illustrate examples of the proposed filter function and calculate integer coefficients of filter impulse response. Detailed comparison between the proposed selective filter class and classical CIC filters is given. The results show that the stopband selectivity can be improved for as much as 40 dB in comparison with classical CIC filtes with the same filter complexity.

Keywords

selective CIC filter, comb filters, FIR filters, recursive form, nonrecursive form, classical CIC filter

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References


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