A feedback ANC system using adaptive lattice filters

Author

Yeung, Tak-Keung ; Yau, Sze-Fong

Author_Institution

Dept. of Electr. & Electron. Eng., Hong Kong Univ. of Sci. & Technol., Clear Water Bay, Hong Kong

Volume

5

fYear

1998

fDate

31 May-3 Jun 1998

Firstpage

186

Abstract

This paper investigates the feedback active noise control system which consists of three modules: predictor, identifier and equalizer. The predictor is implemented by an adaptive transversal FIR filter. A new adaptive lattice filter is proposed to construct the identifier which is constrained to be minimum-phase. The reflection coefficients of the identifier are then used to form a lattice IIR filter for equalization with guaranteed stability. Simulation results show that adopting the adaptive lattice filters for identification and equalization achieves excellent performance, and the feedback ANC system is effective for low-frequency noise reduction

Keywords

FIR filters; active noise control; adaptive equalisers; adaptive filters; feedback; lattice filters; active noise control system; adaptive lattice filters; equalization; equalizer; feedback ANC system; low-frequency noise reduction; minimum-phase identifier; predictor; reflection coefficients; transversal FIR filter; Active noise reduction; Adaptive filters; Adaptive systems; Control systems; Equalizers; Feedback; Finite impulse response filter; IIR filters; Lattices; Transversal filters;

fLanguage

English

Publisher

ieee

Conference_Titel

Circuits and Systems, 1998. ISCAS '98. Proceedings of the 1998 IEEE International Symposium on

Conference_Location

Monterey, CA

Print_ISBN

0-7803-4455-3

Type

conf

DOI

10.1109/ISCAS.1998.694439

Filename

694439