Design method of FIR digital filters with arbitrary passband by using interpolation techniques

K. Kitamura, Masaaki Ikehara, S. Takahashi

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

We propose a new design method for FIR digital filters with arbitrary passband by using interpolation techniques. Interpolated FIR (IFIR) filters have a sparse impulse response with every Lth sample being nonzero and can be implemented by replacing each delay of an original filter with L delays. We call L the interpolation ratio. L is an integer. Then the frequency band is reduced to 1/L. To implement a desired passband, the IFIR filter requires only 1/L multipliers of the direct form FIR digital filter. Using this method it is possible to implement a narrowband filter with fewer than 30 percent multipliers of the direct form, and a wideband lowpass filter with fewer than 40 percent multipliers.

Original languageEnglish
Title of host publicationIEE Conference Publication
PublisherPubl by IEE
Pages6-10
Number of pages5
Edition308
Publication statusPublished - 1989
EventEuropean Conference on Circuit Theory and Design - Brighton, Engl
Duration: 1989 Sep 51989 Sep 8

Other

OtherEuropean Conference on Circuit Theory and Design
CityBrighton, Engl
Period89/9/589/9/8

Fingerprint

FIR filters
Digital filters
Interpolation
Impulse response
Frequency bands

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

Cite this

Kitamura, K., Ikehara, M., & Takahashi, S. (1989). Design method of FIR digital filters with arbitrary passband by using interpolation techniques. In IEE Conference Publication (308 ed., pp. 6-10). Publ by IEE.

Design method of FIR digital filters with arbitrary passband by using interpolation techniques. / Kitamura, K.; Ikehara, Masaaki; Takahashi, S.

IEE Conference Publication. 308. ed. Publ by IEE, 1989. p. 6-10.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Kitamura, K, Ikehara, M & Takahashi, S 1989, Design method of FIR digital filters with arbitrary passband by using interpolation techniques. in IEE Conference Publication. 308 edn, Publ by IEE, pp. 6-10, European Conference on Circuit Theory and Design, Brighton, Engl, 89/9/5.
Kitamura K, Ikehara M, Takahashi S. Design method of FIR digital filters with arbitrary passband by using interpolation techniques. In IEE Conference Publication. 308 ed. Publ by IEE. 1989. p. 6-10
Kitamura, K. ; Ikehara, Masaaki ; Takahashi, S. / Design method of FIR digital filters with arbitrary passband by using interpolation techniques. IEE Conference Publication. 308. ed. Publ by IEE, 1989. pp. 6-10
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