Title :
Performance Analysis of the Fxlms-Based Narrowband Active Noise Control System with Online Secondary Path Modeling
Author :
Yegui Xiao ; Liying Ma ; Khorasani, K. ; Ikuta, Akira
Author_Institution :
Dept. of Manage. & Inf. Syst., Hiroshima Prefectrual Univ., Japan
Abstract :
Rotating machines such as diesel engines, cutting machines, fans, etc. generate sinusoidal noise signals that may be successfully reduced by narrowband active noise control (ANC) systems. In this paper, performance analysis of such a typical filtered-X LMS (FXLMS) based narrowband ANC system equipped with an online secondary path modeling subsystem is conducted in detail. First, difference equations governing the dynamics of the FXLMS for secondary source synthesis and the LMS for secondary path estimation are derived in terms of convergence of both mean and mean square. Steady-state expressions for mean square error (MSE) as well as the remaining noise power are then developed in closed forms. Extensive simulations are performed to demonstrate the validity of the analytical results.
Keywords :
acoustic signal processing; active noise control; filtering theory; least mean squares methods; MSE; cutting machines; diesel engines; fans; filtered-X LMS-based narrowband active noise control system; mean square error; online secondary path modeling; performance analysis; rotating machines; secondary path estimation; sinusoidal noise signal generation; Active noise reduction; Control system synthesis; Diesel engines; Fans; Least squares approximation; Narrowband; Noise generators; Performance analysis; Rotating machines; Signal generators; Convergence; Narrowband active noise control; Online secondary path modeling; Performance analysis; Steady-state mean square error (MSE);
Conference_Titel :
Acoustics, Speech and Signal Processing, 2007. ICASSP 2007. IEEE International Conference on
Conference_Location :
Honolulu, HI
Print_ISBN :
1-4244-0727-3
DOI :
10.1109/ICASSP.2007.366627
