光纤通信中小波去噪预处理技术研究

Wavelet Denoising Pre-Processing Technology Research in Optical Fiber Communication

为了降低随机噪声对信号处理时带来的负面影响,增强信号的有用部分,研究基于Daubechies小波滤波的信号预处理算法。随着小波分解层次的增加,去噪效果能够得到改善,实现了信号的有用部分与噪声的有效分离。

In order to reduce the random noise negative impact on signal processing, and enhance the useful part of the signal, this study is based on a the Daubechies wavelet filtering signal pre-processing algorithm. With the increase in the level of wavelet decomposition and denoising effect can be improved to achieve effective separation of the useful part of the signal and noise.