桂林电子科技大学学报2012，Vol.32Issue(3)：179-183,5.
一种高阻带余弦调制滤波器组的子带有源噪声控制
Subband active noise control using cosine-modulated filter banks with high-stopband attenuation
摘要
Abstract
For wide band active noise control (ANC) system, as a result of the non-ideal characteristic and downsam-pling of the analysis filter banks, the aliasing problem between subband signals in the subband adaptive filter structure is introduced. An interpolated finite impulse response filter (IFIR) is employed to indirectly design the cosine-modulated filter banks prototype filter with high-stopband attenuation to achieve stopband energy minimization, in order to directly eliminate the aliasing problem between subband signals. It has low computational complexity. And compensation the error path delay avoids the delay of cosine-modulated filter banks. Simulation results show that this algorithm has good performance in the broadband gauss white noise and broadband color signal, especially for broadband color signal.关键词
余弦调制滤波器组/高阻带衰减/延迟补偿/有源噪声控制Key words
cosine-modulated filter banks/ high-stopband attenuation/ delay compensation/ active noise control分类
信息技术与安全科学引用本文复制引用
王海燕,邓洪高,刘庆华..一种高阻带余弦调制滤波器组的子带有源噪声控制[J].桂林电子科技大学学报,2012,32(3):179-183,5.基金项目
广西自然科学基金(0832007Z) （0832007Z）
