NDLI: Passive variable fractional delay filter design using distributed maximal flatness method

Content Provider	IEEE Xplore Digital Library
Author	Blok, M.
Copyright Year	2012
Description	Author affiliation: Faculty of Electronics, Telecommunications and Informatics, Gdańsk University of Technology, 11/12 G. Narutowicza Street, 80-233 Wrzeszcz, Poland (Blok, M.)
Abstract	In the paper a novel method for passive fractional delay filter design based on the distributed maximal flatness method is presented. The proposed approach is based on the design method of the one of the most commonly used fractional delay filters - the maximally flat filter. This filter demonstrates the excellent performance only in a relatively narrow frequency range around zero frequency but it is passive, its magnitude response is no greater than one. This passiveness is the reason why despite of its narrow band of accurate approximation, the maximally flat filter is widely used in applications in which the adjustable delay is required in feedback loop. In the proposed method the maximal flatness conditions forced in standard approach at zero frequency are spread over the desired band of interest. In the result passive FD filters are designed but the width of the approximation band can be adjusted to suit the designers needs. Moreover the weighting function can be applied to the error function allowing for designs differing in error characteristic. The proposed method can also be readily adapted for variable fractional delay filter design.
Starting Page	1
Ending Page	6
File Size	1978738
Page Count	6
File Format	PDF
ISBN	9781467317108
e-ISBN	9781467317115
e-ISBN	9781467317092
DOI	10.1109/ICSES.2012.6382225
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2012-09-18
Publisher Place	Poland
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Approximation error Frequency response Vectors Least squares approximation Delay Equations
Content Type	Text
Resource Type	Article

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