DocumentCode
1749593
Title
On the design of Lp IIR filters with arbitrary frequency response
Author
Vargas, Ricardo A. ; Burrus, C. Sidney
Author_Institution
Dept. of Electr. & Comput. Eng., Rice Univ., Houston, TX, USA
Volume
6
fYear
2001
fDate
2001
Firstpage
3829
Abstract
This paper introduces an iterative algorithm for designing IIR digital filters that minimize a complex approximation error in an Lp sense. The algorithm combines ideas that have proven successful in the similar problem of Lp FIR filter design. We use iterative prefiltering techniques common in applications such as parameter estimation together with an iterative reweighted least squares (IRLS) method. The result is a double iterative approach that generates IIR filters of arbitrary magnitude and phase response and arbitrary numerator and denominator orders. Such filters can be used in a variety of applications in which the typical L2 or L∞ error criteria might not be suitable
Keywords
IIR filters; digital filters; frequency response; iterative methods; least squares approximations; minimisation; Lp IIR filters; arbitrary denominator order; arbitrary frequency response; arbitrary magnitude response; arbitrary numerator order; arbitrary phase response; complex approximation error minimization; digital filters; iterative prefiltering; iterative reweighted least squares; Finite impulse response filter; Frequency response; IIR filters; Iterative algorithms; Iterative methods; Least squares approximation; Least squares methods; Nonlinear equations; Nonlinear filters; Signal processing algorithms;
fLanguage
English
Publisher
ieee
Conference_Titel
Acoustics, Speech, and Signal Processing, 2001. Proceedings. (ICASSP '01). 2001 IEEE International Conference on
Conference_Location
Salt Lake City, UT
ISSN
1520-6149
Print_ISBN
0-7803-7041-4
Type
conf
DOI
10.1109/ICASSP.2001.940678
Filename
940678
Link To Document