A Design Method for Variable Linear-Phase FIR Filters with Changing Multifactors for Checkweighers
Summary :
Digital signal processing requires digital filters with variable frequency characteristics. A variable digital filter (VDF) is a filter whose frequency characteristics can be easily and instantaneously changed. In this paper, we present a design method for variable linear-phase finite impulse response (FIR) filters with multiple variable factors and a reduction method for the number of polynomial coefficients. The obtained filter has a high piecewise attenuation in the stopband. The stopband edge and the position and magnitude of the high piecewise stopband attenuation can be varied by changing some parameters. Variable parameters are normalized in this paper. An optimization methodology known as semidefinite programming (SDP) is used to design the filter. In addition, we present that the proposed VDF can be implemented using the Farrow structure, which suitable for real time signal processing. The usefulness of the proposed filter is demonstrated through examples.
- Publication
- IEICE TRANSACTIONS on Fundamentals Vol.E93-A No.8 pp.1400-1407
- Publication Date
- 2010/08/01
- Publicized
- Online ISSN
- 1745-1337
- DOI
- 10.1587/transfun.E93.A.1400
- Type of Manuscript
- Special Section PAPER (Special Section on Signal Processing)
- Category
- Digital Signal Processing
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Toma MIYATA, Naoyuki AIKAWA, "A Design Method for Variable Linear-Phase FIR Filters with Changing Multifactors for Checkweighers" in IEICE TRANSACTIONS on Fundamentals,
vol. E93-A, no. 8, pp. 1400-1407, August 2010, doi: 10.1587/transfun.E93.A.1400.
Abstract: Digital signal processing requires digital filters with variable frequency characteristics. A variable digital filter (VDF) is a filter whose frequency characteristics can be easily and instantaneously changed. In this paper, we present a design method for variable linear-phase finite impulse response (FIR) filters with multiple variable factors and a reduction method for the number of polynomial coefficients. The obtained filter has a high piecewise attenuation in the stopband. The stopband edge and the position and magnitude of the high piecewise stopband attenuation can be varied by changing some parameters. Variable parameters are normalized in this paper. An optimization methodology known as semidefinite programming (SDP) is used to design the filter. In addition, we present that the proposed VDF can be implemented using the Farrow structure, which suitable for real time signal processing. The usefulness of the proposed filter is demonstrated through examples.
URL: https://global.ieice.org/en_transactions/fundamentals/10.1587/transfun.E93.A.1400/_p
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@ARTICLE{e93-a_8_1400,
author={Toma MIYATA, Naoyuki AIKAWA, },
journal={IEICE TRANSACTIONS on Fundamentals},
title={A Design Method for Variable Linear-Phase FIR Filters with Changing Multifactors for Checkweighers},
year={2010},
volume={E93-A},
number={8},
pages={1400-1407},
abstract={Digital signal processing requires digital filters with variable frequency characteristics. A variable digital filter (VDF) is a filter whose frequency characteristics can be easily and instantaneously changed. In this paper, we present a design method for variable linear-phase finite impulse response (FIR) filters with multiple variable factors and a reduction method for the number of polynomial coefficients. The obtained filter has a high piecewise attenuation in the stopband. The stopband edge and the position and magnitude of the high piecewise stopband attenuation can be varied by changing some parameters. Variable parameters are normalized in this paper. An optimization methodology known as semidefinite programming (SDP) is used to design the filter. In addition, we present that the proposed VDF can be implemented using the Farrow structure, which suitable for real time signal processing. The usefulness of the proposed filter is demonstrated through examples.},
keywords={},
doi={10.1587/transfun.E93.A.1400},
ISSN={1745-1337},
month={August},}
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TY - JOUR
TI - A Design Method for Variable Linear-Phase FIR Filters with Changing Multifactors for Checkweighers
T2 - IEICE TRANSACTIONS on Fundamentals
SP - 1400
EP - 1407
AU - Toma MIYATA
AU - Naoyuki AIKAWA
PY - 2010
DO - 10.1587/transfun.E93.A.1400
JO - IEICE TRANSACTIONS on Fundamentals
SN - 1745-1337
VL - E93-A
IS - 8
JA - IEICE TRANSACTIONS on Fundamentals
Y1 - August 2010
AB - Digital signal processing requires digital filters with variable frequency characteristics. A variable digital filter (VDF) is a filter whose frequency characteristics can be easily and instantaneously changed. In this paper, we present a design method for variable linear-phase finite impulse response (FIR) filters with multiple variable factors and a reduction method for the number of polynomial coefficients. The obtained filter has a high piecewise attenuation in the stopband. The stopband edge and the position and magnitude of the high piecewise stopband attenuation can be varied by changing some parameters. Variable parameters are normalized in this paper. An optimization methodology known as semidefinite programming (SDP) is used to design the filter. In addition, we present that the proposed VDF can be implemented using the Farrow structure, which suitable for real time signal processing. The usefulness of the proposed filter is demonstrated through examples.
ER -
English
