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Filters
Simple Design Of Fractional Delay Allpass Filters
2000
Zenodo
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Publication in the conference proceedings of EUSIPCO, Tampere, Finland, 2000 ...
Many design methods have been proposed for fractional delay filters of FIR and IIR type [1, 2] . ...
Design Example and Comparison As an example, a wideband fractional delay allpass filter is designed. ...
doi:10.5281/zenodo.37523
fatcat:jz5dff2p3zaqlb4hx3zv6ks57u
Low-Sensitivity Design of Allpass Based Fractional Delay Digital Filters
[chapter]
2011
Digital Filters
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of the three realizations for several values of the fractional part d of the phase-delay time are given. ...
Another group of design methods encompasses all the minimax approaches to allpass FDFs design in terms of minimal phase error, phase-delay or group-delay error (Laakso et al., 1996) . ...
Low-Sensitivity Design of Allpass Based Fractional Delay Digital Filters, Digital Filters, Prof. ...
doi:10.5772/15577
fatcat:xp7xd3z2avaw3h6bbuzubbsfly
Wls Quasi-Equiripple Design Of Variable Fractional Delay Fir Filters
2006
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Publication in the conference proceedings of EUSIPCO, Florence, Italy, 2006 ...
In the designing of the variable fractional delay filter, the desired range of both frequency and delay must be defined. ...
Therefore the filter coefficients must be designed to response or be a function of the fractional delay d. ...
doi:10.5281/zenodo.53536
fatcat:rf36ugn6ijaz5nftsgmolkeqia
Closed-Form Design Of Digital Fractional-Delay Filters With Constant Magnitude And Variable Delay
2005
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Publication in the conference proceedings of EUSIPCO, Antalya, Turkey, 2005 ...
INTRODUCTION In many applications, a variable fractional-delay (FD) filter is needed [1] . ...
fractional delay values D ∈ [−0.5, 0.5). ...
doi:10.5281/zenodo.39237
fatcat:h6l4nfzgcjcofgtdbakzpwcj2e
Integrated Design of IIR Variable Fractional Delay Digital Filters with Variable and Fixed Denominators
[chapter]
2011
Digital Filters
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The stability of a designed VdIIR VFD filter is ensured if its maximum pole radius is within the unity circle at each of the fractional delay values obtained from a dense grid of fractional delay t [ ...
group delay of a designed VFD filter. ...
Integrated Design of IIR Variable Fractional Delay Digital Filters with Variable and Fixed Denominators, Digital Filters, Prof. ...
doi:10.5772/15741
fatcat:pxbgmtaedrbdfih2qlf3hjqxdu
Accurate Minimax Design Of Variable Fractional-Delay Filters Using Linearized Octagonal Constraints
2011
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Publication in the conference proceedings of EUSIPCO, Barcelona, Spain, 2011 ...
The simplest variable fractional-delay (VFD) filter is the socalled Lagrange-type VFD filter [6] , but its passband width is very narrow. ...
INTRODUCTION Variable digital filters have instantly changeable magnitude responses [1] - [4] or/and fractional-delay (FD) responses [5, 6] . ...
doi:10.5281/zenodo.42272
fatcat:rfvby3arffbpleli4ocf5emjq4
Closed-Form Design of All-Pass Fractional Delay Filters
2004
IEEE Signal Processing Letters
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Numerical examples indicate that the phase delays of the proposed filters are flat around DC. Index Terms-Allpass filter, fractional delay filter, minimum phase, phase delay. ...
In this letter, we propose a novel all-pass (AP) fractional delay filter whose denominator polynomial is obtained by truncating the power series of a certain function. ...
this letter, is the fractional part of the delay. ...
doi:10.1109/lsp.2004.835473
fatcat:h5gurqqscvdgbdudwzcvqvndyu
Closed-Form Design Of Variable Fractional Delay Filter Using Discrete Fourier Transform
2009
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Publication in the conference proceedings of EUSIPCO, Glasgow, Scotland, 2009 ...
Fig. 2 Fig. 3 23 The input/output relation of fractional delay filter. The designed results of a fractional delay filter. (a) Magnitude response. (b) Group delay response. ...
One is the fixed fractional delay (FFD) filter design, the other is variable fractional delay (VFD) filter design. ...
doi:10.5281/zenodo.41431
fatcat:yfkdl4xwvjcjri22nktrqzo7ry
Design Of Variable Fractional-Delay Digital Filters Using Weighted-Least-Squares Singular-Value-Decomposition
2004
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Publication in the conference proceedings of EUSIPCO, Viena, Austria, 2004 ...
Fig. 1 . 1 Absolute WLS-SVD error of variable frequency response.
Fig. 2 .Fig. 3 . 23 Variable Absolute error of variable fractional-delay. ...
INTRODUCTION The variable digital filters with variable fractional-delay (VFD) responses have been found useful in the applications such as timing adjustment in digital receivers, speech coding and synthesis ...
doi:10.5281/zenodo.38301
fatcat:4xnkvyqvdjf63iuhqlrxtbpqj4
Optimal Design of All-Pass Variable Fractional-Delay Digital Filters
2008
IEEE Transactions on Circuits and Systems Part 1: Regular Papers
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This paper presents a computational method for the optimal design of all-pass variable fractional-delay (VFD) filters aiming to minimize the squared error of the fractional group delay subject to a low ...
Index Terms-All-pass filter, constrained least-squares (LS) design, variable fractional-delay (VFD) filters, weighted LS (WLS) design. ...
A survey of fractional-delay filter design is presented in the tutorial paper [10] . ...
doi:10.1109/tcsi.2008.916686
fatcat:xpuxt373lbghfkxnp4ric4i3je
Noniterative WLS design of allpass variable fractional-delay digital filters
2006
IEEE Transactions on Circuits and Systems I Fundamental Theory and Applications
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Index Terms-Allpass variable fractional-delay (VFD) digital filter, iterative weighted-least-squares (WLS) design, noniterative WLS design, VFD digital filter, WLS design. ...
This paper presents a noniterative weighted-leastsquares (WLS) method for designing allpass variable fractional-delay (VFD) digital filters. ...
The survey paper [9] details some designs, implementations, and applications of fixed fractional-delay (FFD) filters as well as VFD filters. ...
doi:10.1109/tcsi.2005.854406
fatcat:ly35p3lcjbegdfuqptuhztva2y
Design of 1-D Stable Variable Fractional Delay IIR Filters
2007
IEEE transactions on circuits and systems - 2, Analog and digital signal processing
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In this brief, a two-stage approach for the design of 1-D stable variable fractional delay infinite-impulse response (IIR) digital filters is proposed. ...
Then, the final design is determined by fitting each of the fixed delay filter coefficients as a 1-D polynomial. Two design examples are given to show the effectiveness of the proposed design method. ...
functions of the fractional delay . ...
doi:10.1109/tcsii.2006.882802
fatcat:u65dufc2wfezfclwyvgzzcv3tu
DESIGN OF OPTIMAL FRACTIONAL DELAY-IIR FILTER USING EVOLUTIONARY ALGORITHMS
2017
International Journal of Advanced Research in Computer Science
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The Fractional Delay (FD) filters are used to give fraction of delay to signal and the FD-IIR filters are being used in various applications of signal processing. ...
optimal fractional delay-IIR filter. ...
Design of Fractional delay IIR filter problem: Digital fractional delay filter has ideal frequency response as given below [14] : (1) where w is digital frequency, w є [0, π] and v is fractional delay ...
doi:10.26483/ijarcs.v8i7.4295
fatcat:q432e22oxvftlmefxg6ecumjbe
Design of 1-D stable variable fractional delay IIR filters
2005
2005 International Symposium on Intelligent Signal Processing and Communication Systems
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In this brief, a two-stage approach for the design of 1-D stable variable fractional delay infinite-impulse response (IIR) digital filters is proposed. ...
Then, the final design is determined by fitting each of the fixed delay filter coefficients as a 1-D polynomial. Two design examples are given to show the effectiveness of the proposed design method. ...
functions of the fractional delay . ...
doi:10.1109/ispacs.2005.1595460
fatcat:hlytr7wzpvdxxk45ptrqcpm7im
Design of delayed fractional state variable filter for parameter estimation of fractional nonlinear models
2018
Nonlinear dynamics
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The required fractional time derivatives of measured input-output data are computed by a proposed delayed fractional state variable filter. ...
The presented approaches for designing the fractional Butterworth filter are the so-called, square root base and compartmental fractional Butterworth design. ...
Conflicts of interest: All authors declare that they have no conflict of interest. a) Transport-delay filter. (b) Delayed fractional state variable filter. ...
doi:10.1007/s11071-018-4519-0
fatcat:ey5ka27vkfh55h5qrdkymj3dia
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