Title :
A new variable step size LMS algorithm with application to active noise control
Author :
Wang, Yue ; Zhang, Chun ; Wang, Zhihua
Author_Institution :
Dept. of Electron. Eng., Tsinghua Univ., Beijing, China
Abstract :
A new adaptive step size adjustment least mean square (LMS) algorithm is presented. The proposed algorithm modifies the existing LMS using the estimated output error as an important component for the modification of the step size. Experiment results demonstrate that application of the new algorithm leads to a significant gain in SNR (signal-to-noise ratio), thus visibly reduces the output error and greatly improves the convergence speed in the context of adaptive active noise cancellation.
Keywords :
acoustic noise; acoustic signal processing; active noise control; adaptive filters; adaptive signal processing; convergence of numerical methods; least mean squares methods; parameter estimation; SNR; active noise cancellation; active noise control; adaptive LMS algorithm; adaptive filtering; convergence speed; output error estimation; signal-to-noise ratio; step size adjustment; Active noise reduction; Adaptive algorithm; Adaptive filters; Convergence; Electric variables control; Least squares approximation; Signal to noise ratio; Size control; Stability; Working environment noise;
Conference_Titel :
Acoustics, Speech, and Signal Processing, 2003. Proceedings. (ICASSP '03). 2003 IEEE International Conference on
Print_ISBN :
0-7803-7663-3
DOI :
10.1109/ICASSP.2003.1200034
