维纳滤波（wiener filtering) 一种基于最小均方误差准则、对平稳过程的最优估计器。这种滤波器的输出与期望输出之间的均方误差为最小，因此，它是一个最佳滤波系统。它可用于提取被平稳噪声所污染的信号。本次实验主要是学习维纳滤波的使用，了解维纳滤波的计算过程，并利用维纳滤波来对噪声进行平稳去噪。-Wiener filter (wiener filtering) based on minimum mean square error criterion, the smooth process of the optimal estimator. Mean square error of the output of such a filter with the desired output is minimized, and therefore, it is a preferred filter system. It can be used to extract the stationary noise contaminated signal. The main experiment is to study the use of Wiener filtering, Wiener filter calculation process to understand and use Wiener filtering to smooth denoising noise.