维纳（Wiener）是用来解决从噪声中提取信号的一种过滤（或滤波）方法。这种线性滤波问题，可以看做是一种估计问题或一种线性估计问题。-Wiener (Wiener) is used to solve a filter to extract signal from noise (or filtering) method. This linear filtering problem can be seen as an estimate or a linear estimation problem.