Designing IIR filter banks composed of allpass sections

Author

Kok, Chi-Wah ; Li, Min

Author_Institution

Electr. Eng. Dept, Hong Kong Univ. of Sci. & Technol., Kowloon, China

Volume

6

fYear

2003

fDate

6-10 April 2003

Abstract

In this paper we discuss the design of passband linear phase IIR filter banks composed of allpass sections which are structurally constrained to have low coefficient sensitivity and low roundoff noise level. The design problem is formulated as H_∞ norm minimization which is subsequently converted to a series of linear matrix inequalities (LMI) and solved by semidefinite programming. Simulation results shown that subband filters with passband linear phase property and high stopband attenuation are obtained, and the whole filter bank has small reconstruction error.

Keywords

H^∞ optimisation; IIR filters; all-pass filters; channel bank filters; digital filters; linear phase filters; matrix algebra; minimisation; roundoff errors; signal reconstruction; H_∞ norm minimization; IIR filter banks; LMI; allpass sections; coefficient sensitivity; design problem; linear matrix inequalities; passband linear phase filter banks; reconstruction error; roundoff noise level; semidefinite programming; stopband attenuation; subband filters; Attenuation; Design methodology; Filter bank; Finite impulse response filter; IIR filters; Noise level; Nonlinear filters; Passband; Transfer functions; Whales;

fLanguage

English

Publisher

ieee

Conference_Titel

Acoustics, Speech, and Signal Processing, 2003. Proceedings. (ICASSP '03). 2003 IEEE International Conference on

ISSN

1520-6149

Print_ISBN

0-7803-7663-3

Type

conf

DOI

10.1109/ICASSP.2003.1201724

Filename

1201724