基于组合自适应横向滤波器的噪声消除

为有效消除无法获取相关噪声源情况下有用窄带信号中的噪声,根据窄带信号的可预测特性,采用自适应横向滤波器对噪声进行抑制。为进一步提高噪声消除性能,设计了组合自适应横向滤波器结构。采用该结构对窄带信号中的噪声进行消除,计算量明显小于采用普通自适应横向滤波结构,并且能获得更好的噪声消除效果。

Noise cancellation based on combined adaptive transversal filter

In order to cancel noise in narrow-band signals without correlatedl noise source, an adaptive transversal filter is adopted to excise noise according to the characteristic that narrow-band signal can be forecasted. In order to improve the ability of anti-noise, a combined adaptive transversal filter is designed. If a combined adaptive transversal filter is adopted to excise noise, compared with a common adaptive transversal filter,the quantity of calculation is smaller and the effect of anti-noise is better.