Arbitrary Multiband IIR Filter Approximation Method Suitable for Design of Parallel Allpass Structures(Special Section of Papers Selected from ITC-CSCC'97)
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概要
- 論文の詳細を見る
In this paper a new general method for approximation of arbitary multiband filter loss specifications, including all classical, maximally flat and equiripple approximations as special cases, is proposed. It is possible to specify different magnitude behavior(flat or equiripple of given degree)and different maximal losses in the different passbands and to optimize all transmission and attenuation zeroes positions or to have some of them fixied. The optimization procedures for adjustment of the filter response are based on modified Remez algorithm and are performed in s-domain what is regarded since recently as an advantage in the case of design of parallel allpass structures based IIR digital filters. A powerful algorithm and appropriate software are developed following the method and their efficiency is verified through design examples.
- 社団法人電子情報通信学会の論文
- 1998-06-25
著者
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Stoyanov G
The Authors Are With The Department Of Telecommunications Technical University Of Sofia
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Kawamata Masayuki
The Graduate School Of Engineering Tohoku University
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UZUNOV Ivan
The authors are with the Department of Telecommunications, Technical University of Sofia
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UZUNOV Ivan
SmartCom company
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STOYANOV Georgi
the Graduate School of Engineering, Tohoku University
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Uzunov Ivan
The Authors Are With The Department Of Telecommunications Technical University Of Sofia
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- Arbitrary Multiband IIR Filter Approximation Method Suitable for Design of Parallel Allpass Structures(Special Section of Papers Selected from ITC-CSCC'97)
- Research Topics and Results on Digital Signal Processing (Special Section on Surveys of Researches in CAS Fields in the Last Two Decades, I)
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