自适应滤波器在噪声抵消系统中的应用

Adaptive Filter Applied in Adaptive Noise Canceller System

带有滤波器的自适应噪声抵消系统具有很好的降噪效果,文章介绍了这种噪声抵消系统的基本原理,并且给出了一种较为简单,易于实现的LMS算法。通过计算机模拟处理,处理后的语音信号较原信号显著地提高了信噪比。

Adaptive noise system with filter has better noise reduction effect. The basic principle of adaptive noise system is described. A more simple LMS algorithm which is easy to implement is presented. After simulated by computer, the SNR （signal to noise ratio） of processed data and the comprehension have been improved obviously.