中文说明：
有源噪声控制(ANC)主要基于LMS算法,但在处理宽带噪声信号和低信噪比情况下,效果不好.影响控制效果的主要原因是输入信号的自相关分布，而小波变换具有消除信号自相关的作用，因此将小波变换引入有源噪声控制(ANC)是解决问题的一种办法。
English Description：
Active noise control (ANC) is mainly based on LMS algorithm, but its effect is not good when dealing with wide-band noise signal and low signal-to-noise ratio. The main reason affecting the control effect is the autocorrelation distribution of input signal, and wavelet transform can eliminate the autocorrelation of signal. Therefore, it is a way to solve the problem by introducing wavelet transform into active noise control (ANC).