Title :
Frequency mismatch in narrowband active noise control
Author :
Jeon, Hyeon-Jin ; Kim, Shin-Wook ; Park, Min-woo ; Lee, Woo-Geun ; Chang, Tae-Gyu ; Kuo, Sen M.
Author_Institution :
Dept. of Electr. & Electron. Eng., Chung-Ang Univ., Seoul, South Korea
Abstract :
This paper analyzes the effects of frequency error in internal signal generator for narrowband active noise control systems. Two stability conditions and the optimum step-size to achieve the minimum excess mean-square error are analyzed in the paper. The noise reduction is formulated as a function of frequency mismatch, step size, and phase error in the estimation of the secondary path. The theoretical analysis presented in the paper is verified by computer simulations.
Keywords :
acoustic generators; active noise control; mean square error methods; noise generators; frequency error; frequency mismatching; internal signal generator; minimum excess mean-square error; narrowband active noise control systems; noise reduction; phase error; stability conditions; Active noise reduction; Control system analysis; Control systems; Error correction; Frequency estimation; Narrowband; Noise generators; Signal analysis; Signal generators; Stability analysis; FXLMS algorithm; frequency mismatch; narrowband active noise control; stability and steady-state analysis;
Conference_Titel :
Acoustics Speech and Signal Processing (ICASSP), 2010 IEEE International Conference on
Conference_Location :
Dallas, TX
Print_ISBN :
978-1-4244-4295-9
Electronic_ISBN :
1520-6149
DOI :
10.1109/ICASSP.2010.5495864
