A Design Method of Variable FIR Filters Using Multi-Dimensional Filters

Toshiyuki YOSHIDA; Akinori NISHIHARA; Nobuo FUJII

A Design Method of Variable FIR Filters Using Multi-Dimensional Filters

Toshiyuki YOSHIDA, Akinori NISHIHARA, Nobuo FUJII

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This paper proposes a new design method of variable FIR digital filters. The method uses a multi-dimensional linearphase FIR filter as a prototype. The principle of the proposed method is based on the fact that the crosssectional characteristics of a 2-D filter along with a line vary if the intersection of this line is changed. The filter characteristics can be varied by recalculating all the filter coefficients from proposed equations, which leads to an advantage that the variable range is very wide. Another advantage is that the passband and stopband deviations are completely predetermined in the design procedures and that the passband edge can be accurately settled to a desired frequency while keeping the transition band width unchanged. First the proposed design method is explained and the effect of the transition band of 2-D filters is discussed. Then the calculation cost required in updating the filter coefficients are considered. Finally two design examples are presented and the proposed method is compared with the existing one, which shows the usefulness of our method.

Publication: IEICE TRANSACTIONS on Fundamentals Vol.E75-A No.8 pp.964-971

Publication Date: 1992/08/25

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Type of Manuscript: Special Section PAPER (Special Section on the 6th Digital Signal Processing Symposium)

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Toshiyuki YOSHIDA, Akinori NISHIHARA, Nobuo FUJII, "A Design Method of Variable FIR Filters Using Multi-Dimensional Filters" in IEICE TRANSACTIONS on Fundamentals, vol. E75-A, no. 8, pp. 964-971, August 1992, doi: .
Abstract: This paper proposes a new design method of variable FIR digital filters. The method uses a multi-dimensional linearphase FIR filter as a prototype. The principle of the proposed method is based on the fact that the crosssectional characteristics of a 2-D filter along with a line vary if the intersection of this line is changed. The filter characteristics can be varied by recalculating all the filter coefficients from proposed equations, which leads to an advantage that the variable range is very wide. Another advantage is that the passband and stopband deviations are completely predetermined in the design procedures and that the passband edge can be accurately settled to a desired frequency while keeping the transition band width unchanged. First the proposed design method is explained and the effect of the transition band of 2-D filters is discussed. Then the calculation cost required in updating the filter coefficients are considered. Finally two design examples are presented and the proposed method is compared with the existing one, which shows the usefulness of our method.
URL: https://global.ieice.org/en_transactions/fundamentals/10.1587/e75-a_8_964/_p

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@ARTICLE{e75-a_8_964,
author={Toshiyuki YOSHIDA, Akinori NISHIHARA, Nobuo FUJII, },
journal={IEICE TRANSACTIONS on Fundamentals},
title={A Design Method of Variable FIR Filters Using Multi-Dimensional Filters},
year={1992},
volume={E75-A},
number={8},
pages={964-971},
abstract={This paper proposes a new design method of variable FIR digital filters. The method uses a multi-dimensional linearphase FIR filter as a prototype. The principle of the proposed method is based on the fact that the crosssectional characteristics of a 2-D filter along with a line vary if the intersection of this line is changed. The filter characteristics can be varied by recalculating all the filter coefficients from proposed equations, which leads to an advantage that the variable range is very wide. Another advantage is that the passband and stopband deviations are completely predetermined in the design procedures and that the passband edge can be accurately settled to a desired frequency while keeping the transition band width unchanged. First the proposed design method is explained and the effect of the transition band of 2-D filters is discussed. Then the calculation cost required in updating the filter coefficients are considered. Finally two design examples are presented and the proposed method is compared with the existing one, which shows the usefulness of our method.},
keywords={},
doi={},
ISSN={},
month={August},}

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TY - JOUR
TI - A Design Method of Variable FIR Filters Using Multi-Dimensional Filters
T2 - IEICE TRANSACTIONS on Fundamentals
SP - 964
EP - 971
AU - Toshiyuki YOSHIDA
AU - Akinori NISHIHARA
AU - Nobuo FUJII
PY - 1992
DO -
JO - IEICE TRANSACTIONS on Fundamentals
SN -
VL - E75-A
IS - 8
JA - IEICE TRANSACTIONS on Fundamentals
Y1 - August 1992
AB - This paper proposes a new design method of variable FIR digital filters. The method uses a multi-dimensional linearphase FIR filter as a prototype. The principle of the proposed method is based on the fact that the crosssectional characteristics of a 2-D filter along with a line vary if the intersection of this line is changed. The filter characteristics can be varied by recalculating all the filter coefficients from proposed equations, which leads to an advantage that the variable range is very wide. Another advantage is that the passband and stopband deviations are completely predetermined in the design procedures and that the passband edge can be accurately settled to a desired frequency while keeping the transition band width unchanged. First the proposed design method is explained and the effect of the transition band of 2-D filters is discussed. Then the calculation cost required in updating the filter coefficients are considered. Finally two design examples are presented and the proposed method is compared with the existing one, which shows the usefulness of our method.
ER -