Design of an IIR Comb Flter with Variable Bandwidths

Yosuke SUGIURA  Arata KAWAMURA  Youji IIGUNI  

Publication
A - Abstracts of IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences (Japanese Edition)   Vol.J94-A   No.1   pp.41-43
Publication Date: 2011/01/01
Online ISSN: 1881-0195
DOI: 
Print ISSN: 0913-5707
Type of Manuscript: LETTER
Category: 
Keyword: 
comb filter,  harmonic signals,  IIR,  valiavle bandwidth,  

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Summary: 
In this paper, we propose a design method of an IIR comb filter that has variable bandwidths for each frequencies. In the proposed method, we introduce a FIR filter into a conventional IIR comb filter for adjusting bandwidths. The bandwidths of the comb filter can be adjusted by the frequency characteristics of the FIR filter. To comfirm the effectiveness of the proposed method, we designed a comb filter by using the proposed method and we show its frequency characteristics.