A two level variable step size FxLMS algorithm for active noise control system

Author

Saravanan, V. ; Santhiyakumari, N.

Author_Institution

Department of Electronics and Communication Engineering, Knowledge Institute of Technology, Salem, India

fYear

2015

fDate

24-25 Jan. 2015

Firstpage

1

Lastpage

5

Abstract

Nowadays, various techniques have been addressed for active noise control (ANC) systems. In which filtered - x - Least Mean Square (FxLMS) algorithm widely used as controller in adaptive filter to update the filter coefficients. Further the performance of the FxLMS algorithm can be improved by changing the step size as well as the structure of the existing method. In this paper, a two level variable step size (TLVSS) FxLMS algorithm has been proposed for a typical ANC system. This new algorithm will improves the convergence as well as reduction in noise compared with conventional FxLMS algorithm. The MATLAB simulation is carried out to demonstrate the performance of the proposed algorithm compared with the conventional FxLMS algorithm.

Keywords

Adaptive filters; Algorithm design and analysis; Convergence; Filtering algorithms; Mathematical model; Microphones; Noise; FxLMS algorithm; active noise control; convergence analysis; noise reduction; variable step size;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical, Electronics, Signals, Communication and Optimization (EESCO), 2015 International Conference on

Conference_Location

Visakhapatnam, India

Print_ISBN

978-1-4799-7676-8

Type

conf

DOI

10.1109/EESCO.2015.7253833

Filename

7253833