Title :
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
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;
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
DOI :
10.1109/ISCAS.1996.539866
