Two fast convergent algorithms for the design of equiripple IIR and FIR filters in the log magnitude sense

Author

Rossi, Michel ; Zhan, Jin-Yun ; Steenaart, WiUem

Author_Institution

Ottawa Univ., Ont., Canada

Volume

1

fYear

1996

fDate

12-15 May 1996

Firstpage

211

Abstract

This paper proposes two algorithms for the design of equiripple filters in the log magnitude sense. The first one is a Remez-type algorithm, and is based on an accelerated Lawson algorithm. It is used to design log IIR filters. The fast convergence of this algorithm compared to the classic Lawson based algorithm is illustrated by design examples. The second algorithm is used for linear phase log FIR filter design. It is based on the Remez algorithm with an iteratively refined weighting function. Design examples showing its robustness and fast convergence are presented

Keywords

FIR filters; IIR filters; convergence of numerical methods; delay circuits; network synthesis; Lawson algorithm; Remez algorithm; convergence; design; equiripple filter; linear phase log FIR filter; log IIR filter; Acceleration; Algorithm design and analysis; Chebyshev approximation; Convergence; Finite impulse response filter; IIR filters; Iterative algorithms; Least squares approximation; Least squares methods; Robustness;

fLanguage

English

Publisher

ieee

Conference_Titel

Circuits and Systems, 1996. ISCAS '96., Connecting the World., 1996 IEEE International Symposium on

Conference_Location

Atlanta, GA

Print_ISBN

0-7803-3073-0

Type

conf

DOI

10.1109/ISCAS.1996.539866

Filename

539866