通过对波德低通滤波使得小波更加平滑 更加实用于实验过程-Low-pass filter by the wavelets Pod smoother more practical in the experiment

POD本征正交分解处理信号，可以对时间序列进行正交化处理。-POD proper orthogonal decomposition processing signal orthogonal treatment of the time series. .

对高阶的矩阵进行pod本征正交分解处理，可以使得信号正交化，方便进行进一步处理-High-level matrix pod proper orthogonal decomposition processing, can make signal orthogonal to facilitate further processing