Extrapolated impulse response FIR filters

Author

Lim, Y.C. ; Liu, B.

Author_Institution

Dept. of Electr. Eng., Nat. Univ. of Singapore, Singapore

Volume

37

Issue

12

fYear

1990

fDate

12/1/1990 12:00:00 AM

Firstpage

1548

Lastpage

1551

Abstract

An FIR filter structure with reduced hardware complexity is presented. It makes use of the quasi-periodic nature of the impulse response samples of low-pass and high-pass filters to extrapolate the filter length. Because of the reduced number of multipliers, it has lower roundoff noise power compared to the direct-form structure. In this technique, one period of the impulse response is realized accurately and the other periods with smaller magnitudes are realized as scaled versions of that period

Keywords

digital filters; filtering and prediction theory; high-pass filters; linear programming; low-pass filters; roundoff errors; extrapolated impulse response; filter length extrapolation; hardware complexity reduction; high-pass filters; impulse response FIR filters; linear programming; low-pass; narrowband type; optimisation; roundoff noise power; Algorithm design and analysis; Circuits; Digital signal processing; Discrete transforms; Finite impulse response filter; Optimized production technology; Signal analysis; Signal processing; Signal processing algorithms; Speech processing;

fLanguage

English

Journal_Title

Circuits and Systems, IEEE Transactions on

Publisher

ieee

ISSN

0098-4094

Type

jour

DOI

10.1109/31.101276

Filename

101276